List of The Flash (2014 TV series) episodes

The Flash is an American television series developed by Greg Berlanti, Andrew Kreisberg and Geoff Johns, airing on The CW. It is based on the DC Comics character Barry Allen / Flash, a costumed crimefighter with the power to move at superhuman speeds. It is a spin-off from Arrow, existing in the same fictional universe. The series follows Barry Allen, portrayed by Grant Gustin, a crime scene investigator who gains superhuman speed, which he uses to fight criminals, including others who have also gained superhuman abilities. The Flash was renewed for a third season in March 2016.^[1] In May, it was revealed that Kevin Smith would return to direct an early episode of the third season.^[2] As of May 3, 2016, 43 episodes of The Flash have aired.

Series overview

Season		Episodes	Originally aired		Nielsen ratings
			First aired	Last aired	Rank	Average viewership (in millions)
	1	23	October 7, 2014	May 19, 2015	44	6.06[3][4]
	2	23[5]	October 6, 2015	May 24, 2016[6]	TBD	TBD

Episodes

Season 1 (2014–15)

No. overall	No. in season	Title	Directed by	Written by	Original air date	Prod. code	U.S. viewers (millions)
1	1	"Pilot"	David Nutter	Story by: Greg Berlanti & Andrew Kreisberg & Geoff Johns Teleplay by: Andrew Kreisberg & Geoff Johns	October 7, 2014	296648	4.83[7]
Barry Allen, a forensic crime scene assistant for Central City Police Department, is struck by lightning during a storm that is created after a particle accelerator from S.T.A.R. Labs explodes. In a coma for nine months, Barry awakens in S.T.A.R. Labs, having been placed in the care of Dr. Harrison Wells and his assistants Dr. Caitlin Snow and Cisco Ramon. Barry learns that he can move at extraordinary speeds, and that there were other "metahumans" created from the explosion. One of them, Clyde Mardon, is robbing banks with his ability to control the weather. In order to stop Clyde, Barry is outfitted with a suit, designed by Cisco, that can withstand his high speed. He tracks down Mardon and with Detective Joe West, who learns of Barry's abilities, Barry is able to stop Mardon, who is killed by Joe. With his new powers, Barry vows to find out who killed his mother when he was a child, believing him to be another metahuman who has similar abilities of speed. Elsewhere, in a secret room at S.T.A.R Labs, Wells reveals he is not paraplegic, while reading a newspaper from the future concerning Barry's fate as the Flash.
2	2	"Fastest Man Alive"	David Nutter	Story by: Greg Berlanti & Andrew Kreisberg Teleplay by: Andrew Kreisberg & Geoff Johns	October 14, 2014	3J5352	4.27[8]
With help from Cisco, Barry begins using his abilities to stop minor crimes and help citizens across the city. As Barry begins to push himself more and more, he begins to develop debilitating side effects. While assisting Iris West on a school assignment, Barry witnesses a robbery by a crew of men, but faints while trying to stop them. The S.T.A.R. Labs team determine that Barry is becoming hypoglycemic from the use of his abilities due to a sped-up metabolism and needs to ingest more calories to maintain his energy level. The team eventually learns that the robbers are actually one man, Danton Black, who has the ability to create clones of himself. Black wants to kill his former employer Simon Stagg, who stole Black's cloning research. With encouragement from Joe, Barry goes after Black and successfully stops him from killing Stagg. However, Black commits suicide to prevent being captured. Afterward, Barry accepts Joe's help in finding out who really killed Barry's mother. Later, Wells visits Stagg, who has already become obsessed with the Flash after witnessing his powers and plans to exploit them as he did to Black. To protect Barry, Wells kills Stagg.
3	3	"Things You Can't Outrun"	Jesse Warn	Alison Schapker & Grainne Godfree	October 21, 2014	3J5353	3.59[9]
As the police investigate the murder of one of the city's crime families, Barry suspects that the killer may be a metahuman who can control poison gases. As Barry and Joe work to discover the killer's identity, Dr. Wells and his team work to retrofit the particle accelerator into a prison for metahumans where they can begin to find a way of reversing their mutations. This brings up difficult feelings and memories for Dr. Snow, whose fiancé, Ronnie Raymond, was killed by the explosion. Following another murder, Barry locates the killer, Kyle Nimbus, but is unable to subdue him. Barry discovers that Kyle does not control gases, but transforms his body into them. The team learn that Joe, the lead detective in the original case, is Kyle's next target. Barry races to Iron Heights Prison to save Joe's life. Barry forces Kyle to overexert himself so that he can apprehend him. The team lock Kyle into a custom cell that is able to keep him from escaping. In a flashback to when the accelerator explodes, Dr. Wells is seen going into his hidden room and viewing a surveillance video of Barry getting struck by lightning in his lab.
4	4	"Going Rogue"	Glen Winter	Geoff Johns & Kai Yu Wu	October 28, 2014	3J5354	3.53[10]
Dr. Wells begins testing Barry's powers by having him perform multiple tasks at superspeed. In the middle of the tests, a group of men attempt to hijack an armored truck carrying a priceless diamond. Barry races over and stops the crime, as well as identifying Leonard Snart from a set of police mugshots. Felicity Smoak arrives to check on Barry, after learning that he woke from his coma. Happy to see Felicity, Barry introduces her to his friends at S.T.A.R. Labs. To combat the "Streak", Snart acquires stolen tech from S.T.A.R. Labs, which includes a cryonic gun. Cisco reveals to Barry that he created the gun as a fail-safe against Barry should he become a killer like the other metahumans they encountered. Felicity helps the team locate Snart, who sets a trap for Barry. Cisco, Caitlin, and Felicity arrive in time to save Barry, and Snart is able to escape. Later, Snart tracks down his former partner, who has an affinity for fire, and offers him a place by Snart's side taking back Central City from the masked superhero.
5	5	"Plastique"	Dermott Downs	Aaron Helbing & Todd Helbing & Brooke Eikmeier	November 11, 2014	3J5355	3.46[11]
A new metahuman with the ability to turn anything she touches into an explosive, Bette Sans Souci, appears in Central City. She is being hunted by General Wade Eiling, and is a former military explosives expert. Barry brings her to S.T.A.R. Labs where the team explains to her that she was changed by the particle accelerator, which bonded bomb shrapnel to her body on a cellular level, but they cannot reverse the process. While the team is away, Dr. Wells convinces Bette to kill Eiling so that he cannot exploit metahumans. Barry races to stop her, but Bette sets off several bombs around Eiling and his men. Eiling kills Bette, and her body turns into a bomb. Barry speeds off with Bette's body and drops it in the river to save the city from the explosion. Eiling visits Dr. Wells, demanding that they work together once again, this time to collect metahumans. Dr. Wells refuses and warns Eiling to never return to S.T.A.R. Labs. In a flashback set five years previously, Dr. Wells tells Eiling he is ending their experiments. After Eiling leaves, Wells walks to a cage and tells Gorilla Grodd that he has plans for him.
6	6	"The Flash Is Born"	Millicent Shelton	Jaime Paglia & Chris Rafferty	November 18, 2014	3J5356	3.73[12]
Iris is visited by the Streak, who again pleads with her to stop writing about him. Before he can finish, Barry speeds off to stop a car thief. Barry confronts the thief, but when he hits him the thief's skin turns to steel and Barry breaks his hand. Barry runs back to the lab before he can be hurt further. The thief is identified as Tony Woodward, Barry's childhood bully. Barry and the team discover Tony's hideout, and Barry rushes in without a plan to defeat him. Tony gets the upper hand again and Barry is beaten up and left to die. Back at the lab, Cisco determines that if Barry can hit Tony at 837 mph at the right angle, then he can create enough force to compromise Tony's metal structure. Tony kidnaps Iris and demands that she write about him. Barry arrives and successfully hits the speed necessary to temporarily disable Tony's abilities. Afterward, Tony is locked away at S.T.A.R. Labs, and Iris renames her hero "The Flash". Meanwhile, Joe is visited by the metahuman that killed Barry's mother, who steals the case file and threatens Joe to drop his investigation.
7	7	"Power Outage"	Larry Shaw	Alison Schapker & Grainne Godfree	November 25, 2014	3J5357	3.47[13]
Dr. Wells returns to his secret room, where it is revealed that he has been documenting Barry's abilities, and using his computer, Gideon, to look at events in the future. Barry arrives at a crime scene where the victim was murdered via electrocution, and charred beyond recognition, suggesting a metahuman was involved. While investigating the victim's identity, the team identifies a power drain in the city. When Barry arrives he is attacked by Farooq Gibran, a man who has the ability to siphon electrical energy. The attack drains Barry of his speed, and Gideon reveals to Wells that there are no references to "The Flash" in the future. Wells believes that Barry's body needs an electrical jumpstart, and Farooq arrives at the lab while the team is helping Barry. The process does not work, but Wells realizes that Barry's problem is psychological. When Farooq catches up to the team and Dr. Wells' life is in danger, Barry overcomes his fear, connects to his speed and stops Farooq. Later, Dr. Wells sees that the timeline is safe, and takes a sample of Farooq's blood to determine how he was able to drain Barry's abilities.
8	8	"Flash vs. Arrow"[lower-alpha 1]	Glen Winter	Story by: Greg Berlanti & Andrew Kreisberg Teleplay by: Ben Sokolowski & Brooke Eikmeier	December 2, 2014	3J5358	4.34[14]
A new metahuman, Roy Bivolo, shows up with the ability to send people into an uncontrollable rage, and uses his ability to rob the Central City bank. The police track him to a warehouse, where he uses his abilities on a cop to facilitate his escape. Barry arrives in time to save Joe, but is almost injured himself before Oliver Queen, as the "Arrow", arrives to stop the cop. Later, Oliver informs Barry that he and his team are tracking a killer who uses lethal boomerangs. Barry and Oliver agree to team-up and catch each other's targets. Oliver tries to teach Barry to be more mindful of his surroundings, but Barry decides to go after Bivolo by himself. Bivolo uses his abilities on Barry, but because of Barry's powers it makes the effects last longer. Oliver tries to stop Barry, and the two engage in a fight. Oliver manages to wrangle Barry long enough for Dr. Wells and Joe to use colored strobe light to reset Barry's emotional state. Afterward, Barry and Oliver capture Bivolo and place him in the prison at S.T.A.R. Labs.
9	9	"The Man in the Yellow Suit"	Ralph Hemecker	Todd Helbing & Aaron Helbing	December 9, 2014	3J5359	4.66[15]
The metahuman that killed Barry's mother returns, killing two guards at Mercury Labs in search of the company's work in tachyon particles. Barry witnesses the man in yellow, and engages in a high speed fight around the city. The man in yellow insinuates to Barry that they know each other before speeding off. Meanwhile, Eddie asks Iris to move in with him and Ronnie is revealed to have survived the particle accelerator explosion, but does not remember who he is and has the ability to burst into flames. Barry confesses his love for Iris before the police and S.T.A.R. Labs use the tachyon particle technology as bait to lure the man in yellow into a trap. The man in yellow escapes and attacks Dr. Wells and the police before engaging in a second fight with Barry. Ronnie appears and blasts the man with flames before both flee the scene. Later, Dr. Wells enters his secret room and unveils the same yellow suit as the man that they captured, placing the stolen tachyon technology on the suit's chest.
10	10	"Revenge of the Rogues"	Nick Copus	Kai Yu Wu & Geoff Johns	January 20, 2015	3J5360	3.87[16]
As Barry works on improving his speed through various training exercises, Leonard Snart returns to Central City with the cold gun and a new partner, Mick Rory, to set a trap for the Flash. Barry discovers his plan, and agrees with Dr. Wells to not engage Snart in the hope that he goes away and no one gets hurt like the last time. When the Flash fails to show, Snart and Rory, who now has a gun that can emit absolute hot temperatures, kidnap Caitlin to force Barry out of hiding. Cisco and Barry realize that if they can get Snart and Rory to cross the streams of their respective weapons it will cancel the two guns out. The Flash meets Snart and Rory in the city for a showdown, exposing himself to the media. After multiple failed attempts, Barry eventually gets them to cross the streams with Eddie's help, successfully damaging the weapons and disabling the criminal pair. While in transport to Iron Heights Prison, Snart and Rory are broken out by Snart's sister. Meanwhile, Caitlin investigates the cause of Ronnie's transformation.
11	11	"The Sound and the Fury"	John F. Showalter	Alison Schapker & Brooke Eikmeier	January 27, 2015	3J5361	4.08[17]
While home, Dr. Wells receives a threatening call from an unidentified person before using his super speed to move out of the way of his glass ceiling shattering. Wells informs Barry and the team that the caller was Hartley Rathaway, a former protégé. Hartley begins attacking his family's business with sonic blasts, and when Barry arrives to stop him Hartley reveals that he knows the secret Dr. Wells is hiding. Dr. Wells reveals that Hartley warned him that the particle accelerator could explode, but Wells chose to risk it for the rewards. Cisco discovers that Hartley intentionally got caught so he could steal information from S.T.A.R. Labs that would allow him to identify the frequency of Barry's molecules so he can kill him. Barry triggers a trap set by Hartley, which starts shredding Barry's organs. Dr. Wells taps into a satellite and sends an alternative frequency to disable Hartley's weapons. Later, Joe has Eddie start an investigation into Dr. Wells. Hartley, imprisoned back in the particle accelerator, reveals to Cisco that he knows where Ronnie is. In his secret room, Dr. Wells uses the tachyon technology to temporarily recharge his speed force energy.
12	12	"Crazy for You"	Rob Hardy	Aaron Helbing & Todd Helbing	February 3, 2015	3J5362	3.60[18]
A woman with the ability to teleport to any location she can see breaks into Iron Heights prison to free her boyfriend, Clay Parker. Barry finds residual DNA particulates all over the scene and when analyzing it at S.T.A.R. Labs the team identifies the woman as Shawna Baez. To help Barry, Henry Allen tracks down leads in Iron Heights and finds out that Clay owed money to a local crime boss, who was also planning a heist. Barry learns the location of the heist, finding Shawna and Clay robbing an armored truck. Barry is able to capture Shawna after removing all the lights in a tunnel, effectively making her unable to teleport without being able to see. Cisco goes to Hartley to find out more about Ronnie; Hartley reveals that Dr. Martin Stein, who developed research into a F.I.R.E.S.T.O.R.M. project focused on transmuting elements, was at S.T.A.R. Labs the day of the explosion. Hartley reveals that during the explosion Ronnie and Dr. Stein merged, before he escapes Cisco's custody. Later, Barry and his father discuss the Flash, with Henry insinuating he believes Barry is the Flash. Elsewhere, two city workers are attacked by the gorilla, Grodd.
13	13	"The Nuclear Man"	Glen Winter	Andrew Kreisberg & Katherine Walczak	February 10, 2015	3J5363	3.66[19]
The team attempts to track Ronnie's whereabouts after he injures a scientist. Knowing that Dr. Stein is in control of Ronnie's body, they use his wife to talk the merged individual into coming back to the lab for testing. Meanwhile, Joe enlists Cisco's help to identify who murdered Barry's mother. Cisco discovers an old mirror left in the former Allen home that captured images from the night of the murder, and Joe finds blood from two people behind some new wallpaper. Joe asks Cisco to compare the blood to Dr. Wells', but Cisco refuses to believe Dr. Wells is involved. Dr. Wells discovers that Ronnie and Dr. Stein's atoms are in conflict, and if it continues they will become nuclear. Dr. Wells determines that a component of the tachyon device recharging his speed could be converted to a quantum splicer to stabilize the body and separate the two personalities. Dr. Snow uses the device; the fused body still goes nuclear, but safely away from the city. The explosion alerts General Eiling, who orders a team to recover "Firestorm". Cisco runs the blood and informs Joe that while neither is from Dr. Wells, one is from an adult Flash.
14	14	"Fallout"	Steve Surjik	Keto Shimizu & Ben Sokolowski	February 17, 2015	3J5364	4.01[20]
Barry and Caitlin investigate the explosion and find Ronnie and Dr. Stein have separated. General Eiling investigates the crater left by Firestorm's explosion, and realizes the separation. Joe shows Barry the images from the night his mother was killed, and Barry learns that a future version of himself was trying to save his mother. Barry talks to Dr. Stein and learns about the possibility of time travel. Dr. Wells visits General Eiling, who reveals that he knows Barry is the Flash and that he wants the F.I.R.E.S.T.O.R.M. project. Dr. Wells gives up Dr. Stein, who is tortured by Eiling until Ronnie shows to save him. Ronnie and Dr. Stein reunite to survive Eiling's military onslaught. Merging properly this time, the two work together to control the Firestorm Matrix within them, gaining enough control to be able to merge and separate on command. The pair decide to leave Central City to stay ahead of Eiling and learn more about their new powers. The Reverse-Flash kidnaps Eiling and brings him to the sewers. He reveals himself to be Dr. Wells, and allows Grodd, who is displaying psychic abilities, to drag Eiling deeper into the sewer.
15	15	"Out of Time"	Thor Freudenthal	Todd Helbing & Aaron Helbing	March 17, 2015	3J5365	3.69[21]
Mark Mardon, who has the ability to control the weather, returns to Central City to avenge the death of his brother and sets his sight on Joe. Cisco begins to believe Joe was right about Wells, so he rechecks the containment field that had failed to hold the Reverse-Flash. He discovers that the Reverse-Flash seen in the containment field was only a holographic recording. Wells arrives and reveals himself to be Eobard Thawne, a man from the future who came back in time to kill the Flash but killed his mother instead, and has since been stranded in the present day. Wells also explains that he is pushing Barry to get stronger so that he can use Barry's powers to return to his time, and he murders Cisco to protect his secret. Mark kidnaps Joe and forces him to watch as Mark sends a tsunami into the city in order to kill Iris. Barry is forced to reveal his secret identity to Iris, just after she admits to romantic feelings for him, in order to save the city. Barry runs back and forth across the coastline to create a barrier against the tsunami, but he runs so fast that he creates a time warp and travels back in time to when Mark first returned to Central City.
16	16	"Rogue Time"	John Behring	Story by: Grainne Godfree Teleplay by: Brooke Eikmeier & Kai Yu Wu	March 24, 2015	3J5366	3.33[22]
As Barry begins to relive the previous day, Dr. Wells realizes what happened and warns Barry not to change any event for fear that he will create a bigger problem as the universe balances itself. Barry does not listen and instead captures Mark Mardon before he can kidnap Joe. Meanwhile, Leonard Snart and Mick Rory return to Central City. Leonard sends his sister Lisa Snart after Cisco, whom they force to rebuild the cold and heat guns, and a third gun for Lisa that turns people into gold, under threat that they will kill Cisco's brother. Barry realizes that Dr. Wells was right, and his actions have resulted in Cisco's kidnapping and Iris rejecting his romantic advances. Cisco returns and reveals that Leonard tortured his brother until Cisco revealed the Flash's true identity. Barry goes after the Snarts, and the two develop an uneasy truce: Snart will not reveal Barry's identity, will no longer kill innocent people, and stay away from Barry's friends in exchange for Barry not locking him away in the particle accelerator. The Reverse-Flash kills a local reporter and destroys evidence linking Dr. Wells to Simon Stagg's death. The reporter's vanishing causes Barry to think Joe might be right about Dr. Wells.
17	17	"Tricksters"	Ralph Hemecker	Andrew Kreisberg	March 31, 2015	3J5367	3.67[23]
Barry and Joe go after terrorist Axel Walker, who goes by the name Trickster. Axel sets a diversion for the Flash so that he can break James Jesse, the original Trickster from 20 years prior, out of prison. James and Axel attempt to extort wealthy patrons by poisoning them and ransoming the antidote. When the Flash arrives, the Tricksters fit him with a bomb that will detonate if he stops moving. Dr. Wells coaches Barry on how to vibrate his molecules so that he can phase through objects, which removes the bomb. Afterward, Barry provides an antidote to all the patrons, before capturing the Tricksters. Later, the Flash reveals his identity to Eddie so he can help keep Iris from looking into Dr. Wells for her own protection, as Barry realizes that Wells is the Reverse-Flash. In flashbacks, after failing to kill Barry as a child, the Reverse-Flash escapes down the road only to lose his speed. Gideon informs him that travelling back in time has drained his powers. Eobard stalks Dr. Wells and reveals the particle accelerator is not built until the year 2020. He then appears to kill Wells and steal his appearance and identity so he can develop the particle accelerator sooner and return to his timeline.
18	18	"All Star Team Up"	Kevin Tancharoen	Grainne Godfree & Kai Yu Wu	April 14, 2015	3J5368	3.67[24]
As Barry works in conjunction with Joe and Eddie to stop crimes across the city, an engineering professor is attacked and killed by a swarm of bees at the local university. While the team searches for a metahuman that can control bees, Felicity arrives with Ray Palmer, looking for assistance to improve his A.T.O.M. suit. The team tracks another bee attack, but Barry is too late and is attacked by the swarm. The team captures one of the bees, which turns out to be a robot and their metahuman just a disgruntled scientist from Mercury Labs named Brie Larvan, who is targeting other former employees. Barry struggles with whether he can trust Cisco and Caitlin, not knowing if they are working for the Reverse-Flash or not. During the next bee attack, Barry goes after Brie while Ray, as the Atom, attempts to stop the bees from killing Dr. Tina McGee. Felicity taps into the wireless frequency for the bees to disable them, and Barry captures Brie. Later, Barry informs Caitlin and Cisco that Dr. Wells is the Reverse-Flash. Caitlin does not want to believe this, but Cisco does, revealing that he has been having "dreams" in which Wells kills him with super speed.
19	19	"Who Is Harrison Wells?"	Wendey Stanzler	Ray Utarnachitt & Cortney Norris	April 21, 2015	3J5369	3.75[25]
Barry and Eddie track a metahuman named Hannibal Bates, who can shape-shift into anyone he touches, but he takes Eddie's shape and frames him for murder. Later, Hannibal knocks Barry unconscious and assumes his form, but Dr. Wells realizes the truth and prevents Hannibal from killing Caitlin and Iris. While transporting him to Central City Police, Hannibal uses his powers to escape. Caitlin develops a serum to suppress Hannibal's power, allowing Barry to defeat him and clear Eddie's name. Meanwhile, Joe and Cisco decide to investigate the car accident scene in Starling City where Wells' wife Tess Morgan died, though Caitlin is unsure they are correct and believes they are going to ruin Dr. Well's reputation. With the help of Captain Quentin Lance, Cisco and Joe locate a buried corpse near the crash site. After a series of tests confirm the corpse is the real Harrison Wells, Barry, Caitlin and Cisco locate the imposter's secret room at S.T.A.R. Labs. They find both the Reverse-Flash's costume and a newspaper article from the future concerning the Flash vanishing during a crisis.
20	20	"The Trap"	Steve Shill	Alison Schapker & Brooke Eikmeier	April 28, 2015	3J5370	3.93[26]
While in Wells' secret room, Barry learns about his battle with the Reverse-Flash in the future, as well as key moments in his life that include marrying Iris, a promotion at the CCPD, and that he created the artificial consciousness known as Gideon in the future. The team regroups at Barry's home, where Barry explains his plan to convince Wells to confess to killing his mother. In order to trap Wells, Cisco reverses the polarity of his containment field to protect himself from Wells, while Caitlin films the interaction to capture Wells' confession. The trap fails, but Joe shoots Wells before he can kill Cisco. As Wells dies, his body transforms, revealing himself to be Hannibal Bates. Wells himself calls the team, revealing that he was always aware of their actions because he had them under surveillance. Wells goes after Iris and Eddie, but Barry arrives, forcing Wells to kidnap Eddie instead. Wells reveals to Eddie that he is really Eddie's future relative. Flashbacks reveals the aftermath of Barry being struck by lightning, and Wells offering to Joe to save Barry's life.
21	21	"Grodd Lives"	Dermott Downs	Grainne Godfree & Kai Yu Wu	May 5, 2015	3J5371	3.62[27]
Barry scours the city looking for Eddie, but must take a break to stop a robbery at the gold reserve. When Barry confronts the would-be thief, they are both disoriented by an unknown psychological attack. Back at the lab, Barry describes the attack to Caitlin and Cisco when Iris walks in, confronting Barry about being the Flash. The thief attacks again, but Barry is able to stop him. The thief turns out to be General Eiling, whose mind was being controlled by the gorilla Grodd. With a lead from Iris, Barry, Joe and Cisco head into the sewers to look for Grodd. The trio realize that Grodd is getting smarter and larger, and during an attack, Barry is knocked unconscious while Joe is kidnapped by Grodd. Cisco and Caitlin build Barry a device that will prevent Grodd from attacking him psychically. It works, but Grodd is too powerful and during a fight the device is damaged. Barry is able to fight off Grodd's psychic attack and trick him into jumping in front of an on-coming train. Elsewhere, Wells works on a device that will allow him to return to his own time.
22	22	"Rogue Air"	Doug Aarniokoski	Aaron Helbing & Todd Helbing	May 12, 2015	3J5372	3.65[28]
Cisco discovers that Wells has been supercharging his speed while he sits in his wheelchair, which is why he is so much faster than Barry. The particle accelerator is activated, and the team realizes that Wells has been at S.T.A.R. Labs the entire time, and that he has repaired the accelerator. While investigating, Wells escapes, but the team is able to find and rescue Eddie, who is disillusioned after Wells showed him that Iris marries Barry in the future. Eddie later tells Iris what he knows of her future and ends their relationship. Worried that the metahumans imprisoned inside the particle accelerator will be killed when it reaches full power, the team decides to relocate them to the A.R.G.U.S. prison on Lian Yu. In order to set up a safe transport, Barry is forced to go to Leonard Snart for help. Snart agrees but only after Barry erases Snart's criminal record and history from the CCPD database. Snart sabotages the transport and allows the metahumans to escape. Wells arrives back at the lab just as the accelerator fully charges. Barry, Firestorm and Oliver all meet outside to fight Wells. After each tries battling Wells individually, they coordinate their efforts, and Oliver finally stops him with a nanite injection that disables Wells' speed and knocks him out.
23	23	"Fast Enough"	Dermott Downs	Story by: Greg Berlanti & Andrew Kreisberg Teleplay by: Gabrielle Stanton & Andrew Kreisberg	May 19, 2015	3J5373	3.87[29]
Barry visits Wells in the particle accelerator prison, where Wells describes their relationship in the future, why he killed Barry's mother, and why he ultimately had to help Barry become the Flash. Wells also makes a proposal to Barry, requesting that he help create a wormhole where Wells can return to his time, while also allowing Barry to go back in time to save his mother. Barry and the team are conflicted, as this could alter the timeline in an indeterminable way. Barry decides to go through with it, so Wells informs him that he will need to turn the particle accelerator on and then super speed at the right velocity into a hydrogen particle to create a wormhole. Barry will have less than 2 minutes to change the past, otherwise the wormhole will become a black hole that could destroy the world. After Ronnie and Caitlin are married, Barry successfully travels back in time, but his future self signals him not to save their mother. Instead, Barry identifies himself and reassures Nora that he is safe in the future before she dies. Barry returns and stops Wells from returning to his time. This action angers Wells, and the two begin to fight, while the team shuts down the wormhole before it destabilizes. Wells eventually prevails over Barry, but before Wells can kill Barry, Eddie shoots himself, causing Wells, as he is reverted back into Eobard, to be erased from existence. Despite the team shutting down the wormhole, it reappears, and the team is unable to prevent it from becoming a black hole. As the black hole begins to tear the city apart, Barry super speeds into it in an effort to stop it.

Season 2 (2015–16)

No. overall	No. in season	Title	Directed by	Written by	Original air date	Prod. code	U.S. viewers (millions)
24	1	"The Man Who Saved Central City"	Ralph Hemecker	Story by: Greg Berlanti & Andrew Kreisberg Teleplay by: Andrew Kreisberg & Gabrielle Stanton	October 6, 2015	3J5651	3.58[30]
Ronnie and Professor Stein turn into Firestorm and destroy the singularity, but at the cost of Ronnie's life. Six months later, Barry now operates on his own to avoid hurting any more of his friends and family; Cisco works in the police department alongside Joe and his metahuman task force, and Caitlin works at Mercury Labs. The city holds a ceremony honoring the Flash for his work in saving the city. At the ceremony, Barry is attacked by Al Rothstein whose strength and size manipulation prove too much for Barry to handle on his own. He is convinced by Joe and the others that he needs help in taking down certain metahumans and Barry defeats Al by allowing him to absorb too much radiation. In his dying breath, Al tells Barry that he was sent to kill him by someone named Zoom. Barry also receives a hard drive from Dr. Wells containing his confession to killing Nora that finally proves Barry's father's innocence. They throw a party, where Henry tells Barry that he is not staying in Central City so that Barry can focus on being the Flash. A mysterious man shows up at S.T.A.R. Labs, introduces himself as Jay Garrick, and declares that the world is in danger.
25	2	"Flash of Two Worlds"	Jesse Warn	Aaron Helbing & Todd Helbing	October 13, 2015	3J5652	3.49[31]
Jay explains to everyone that he is the Flash on his world, a parallel Earth, and that he was in a battle with a demonic speedster named Zoom when the singularity brought him to this Earth without his powers. Dr. Stein explains to the team how Jay's story could be possible using the multiverse theory, describing their world as "Earth-1" and Jay's as "Earth-2". Zoom arrives and brings another metahuman from his Earth named Sand Demon to kill Barry. The two fight, but Sand Demon escapes. Cisco analyzes the "sand" left behind and has a flash of the fight between him and Barry. After Sand Demon kidnaps Officer Patty Spivot, Jay teaches Barry how to hurl lightning from the energy he creates when he runs. Cisco uses his new power to tap into the "sand" particles and find Patty's location. Barry uses the lightning blast to turn Sand Demon's particles to glass, stopping him. Later, Officer Spivot joins Joe's metahuman task force. Cisco divulges his new ability to Dr. Stein, but asks him not to tell anyone. Dr. Stein and Cisco are able to locate 52 breaches with the other Earth, with the largest one being within S.T.A.R. Labs itself. While showing the team, Dr. Stein collapses into unconsciousness.
26	3	"Family of Rogues"	John F. Showalter	Julian Meiojas & Katherine Walczak	October 20, 2015	3J5653	3.47[32]
The team locates one of the singularity breaches in the lab and Jay creates a device that stabilizes it and will allow him to return home, but he opts to stay to help Barry stop Zoom. Meanwhile, Lisa Snart shows up asking for Flash's help in rescuing her brother Leonard, whom she believes was kidnapped. Barry tracks down Leonard, who reveals that he was not kidnapped but is working with his father, Lewis. Lisa swears that Leonard would never work with their father willingly, because their father was abusive toward her when she was a child. Eventually, the team determines that Lewis placed a bomb inside of Lisa and threatened to kill her if Leonard did not help him steal some diamonds. Barry infiltrates Lewis' crew with assistance from Leonard. Cisco successfully removes the bomb from Lisa, so Leonard uses his cold gun to kill his father in retaliation. Dr. Stein's condition continues to deteriorate, and Earth-2's Dr. Harrison Wells arrives through the singularity breach at the lab.
27	4	"The Fury of Firestorm"	Stefan Pleszczynski	Kai Yu Wu & Joe Peracchio	October 27, 2015	3J5654	3.43[33]
The team are able to stabilize Dr. Stein, but only for a short period of time, while they attempt to locate another viable partner for the Firestorm matrix. The team identify two potential candidates, a scientist named Henry Hewitt and a former high school football star named Jefferson "Jax" Jackson. Hewitt is excited to merge with Stein, but the attempt fails and Hewitt leaves angrily, but also now unknowingly connected to the Firestorm matrix. Jefferson initially refuses, but when Hewitt goes on the attack with his new abilities Jefferson agrees to merge with Dr. Stein. After the successful merge, the new Firestorm joins Barry in helping to take down Hewitt, forcing Hewitt to get angrier until he burns himself out and loses his abilities. Before departing with Jefferson, Dr. Stein encourages Cisco to tell the others about his powers. Meanwhile, Dr. Wells breaks into Mercury Labs and steals an unknown device. Later, Barry is attacked by a humanoid shark monster sent by Zoom to kill the Flash, but he is saved when Dr. Wells uses the device to incapacitate the creature.
28	5	"The Darkness and the Light"	Steve Shill	Ben Sokolowski & Grainne Godfree	November 3, 2015	3J5655	3.87[34]
The team meets the Earth-2 Harrison Wells, who is responsible for the creation of the metahumans and Zoom of his Earth. Despite his attitude, Wells plans to help Barry's team stop Zoom and his metahumans. At the same time, a thief from Earth-2 named Doctor Light arrives and starts robbing banks. Jay tells Barry that she can be reasoned with, and it works until Barry recognizes her as the Earth-2 version of Linda Park. Later, Light attempts to kill Linda and take over her life, but accidentally kills Linda's boss and is foiled by Barry's team in the process. Wells reveals Cisco's metahuman powers to the team, which Cisco uses to locate Doctor Light. Barry defeats her using a speed mirage technique that was suggested by Wells. After locking Light up, they plan to use her to lure Zoom out and defeat him for good. Jay, who does not trust Wells, thinks it is too dangerous and leaves the team. Back on Earth-2, it is revealed that Zoom has Wells' daughter captive.
29	6	"Enter Zoom"	JJ Makaro	Gabrielle Stanton & Brooke Eikmeier	November 10, 2015	3J5656	3.63[35]
As the team works to find a way to stop Zoom, Doctor Light escapes from her containment cell, after Barry was hoping that she would help them stop Zoom. Instead, her Earth-1 counterpart, Linda Park, agrees to help the team by impersonating Doctor Light. Dr. Wells creates a speed dampening serum and the team stages a fight at one of the breaches in order to trick Zoom through. The attempt fails, as Zoom knew what they were attempting. Instead, he goes after Linda, before fighting Barry. Zoom is much faster and easily bests Barry, showing his defeated, unconscious body to the local news and the police station before ultimately returning to S.T.A.R. Labs. Zoom stabs Barry with his hand, but Cisco shoots him with the serum, which hurts Zoom, but still leaves him with enough speed to escape. Later, Wells reveals that Zoom has his daughter Jesse and that he came to Earth-1 to stop Zoom. Barry wakes from his injuries and discovers that he can no longer feel his legs.
30	7	"Gorilla Warfare"	Dermott Downs	Aaron Helbing & Todd Helbing	November 17, 2015	3J5657	3.46[36]
Barry manages to recover following his fight with Zoom, but is unable to use his powers due to the psychological trauma of Zoom exposing his beating to the city. Iris reaches out to Henry Allen, who returns to the city to help Barry overcome his fears. Cisco has a date with Kendra Saunders, but leaves after seeing a winged man in one of his vibes. Grodd returns, using scientists to steal various chemicals in the hopes of creating more gorillas with his level of intelligence. He later kidnaps Caitlin to help him with his plan. The team dress Wells up as the Reverse-Flash in order to trick Grodd into thinking that his "father" is still alive. The plan works long enough for Wells to rescue Caitlin before they both escape. After Barry is fully recovered, they lure Grodd to one of the dimensional breaches and send him to a jungle sanctuary for gorillas that have been experimented on in Earth-2. Later, Cisco meets Kendra again, this time vibing and seeing Kendra as the winged figure.
31	8	"Legends of Today"[lower-alpha 2]	Ralph Hemecker	Story by: Greg Berlanti & Andrew Kreisberg Teleplay by: Aaron Helbing & Todd Helbing	December 1, 2015	3J5658	3.94[37]
Vandal Savage arrives in Central City looking to kill Priestess Chay-Ara, who turns out to be Kendra, though she is not aware of it at first. Barry goes to Star City and enlists the help of Oliver and his team to protect Kendra until they can stop Savage. The team is visited by Malcolm Merlyn who informs them that Savage is an immortal who cannot be stopped. Later, Kendra is kidnapped by a winged man, but is rescued by Barry and Oliver who capture her captor. The man is Carter Hall, who tells them he was Prince Khufu in ancient Egypt and that he and Kendra are soulmates who have been connected for 4,000 years. The pair are destined to die, be reborn, and find each other in each lifetime. Carter also reveals that Savage has killed them in their last 206 lifetimes, each time growing stronger. Savage locates the Staff of Horus, a weapon capable of killing Carter and Kendra, in Central City. After Kendra unlocks her abilities, the team decides to regroup in Central City to take down Savage for good. Meanwhile, Caitlin and Harrison create a serum that will temporarily increase Barry's speed so that he can defeat Zoom.
32	9	"Running to Stand Still"	Kevin Tancharoen	Andrew Kreisberg	December 8, 2015	3J5659	3.55[38]
Mark Mardon breaks James Jesse and Leonard Snart out of Iron Heights in an effort to team up to kill the Flash. Snart declines and warns Barry as repayment for him saving Leonard's sister. When Patty learns Mark is back in the city, she sets out to take revenge upon Mark for killing her father years earlier. James and Mark place bombs hidden in Christmas gifts throughout the city, threatening to set them off in family homes if Barry does not sacrifice himself. Harry, Cisco, and Jay find one of the bombs and alter its magnetic polarity; they send it into one of the dimensional breaches, which causes it to attract the remaining bombs, removing them from the city. With them gone, Barry subdues Mark and James. Patty arrives ready to kill Mark, but Barry talks her out of it as the Flash. Meanwhile, Joe learns that his ex-wife was pregnant when she left and that he has an adult son named Wally, who later shows up at Joe's house. Elsewhere, Zoom visits Harry and agrees to release his daughter if Wells helps the Flash become faster so that he can steal the Flash's speed.
33	10	"Potential Energy"	Rob Hardy	Bryan Q. Miller	January 19, 2016	3J5660	3.41[39]
As Dr. Wells struggles to try to find ways to increase Barry's speed, Cisco presents a new idea to slow Zoom down. Cisco tells the team about a metahuman, whom he has dubbed the "Turtle", who has the ability to stop the kinetic energy around him and thus slow everyone to a halt. After Barry fails to stop the Turtle at a diamond unveiling, the team sets a trap at a local art exhibit. Barry invites Patty with the intention of telling her his secret, but the Turtle is aware of the trap and almost succeeds in killing Patty before escaping. Later, the Turtle kidnaps Patty in an effort to punish the Flash. The team tracks down the Turtle and Barry is able to generate enough speed to move through the kinetic waves the Turtle creates to knock him unconscious and save Patty. Later, Patty tells Barry that she is leaving Central City and Dr. Wells kills the Turtle by extracting a portion of his brain matter. Meanwhile, Joe struggles to develop a relationship with Wally, who has been street racing in an attempt to earn enough money to pay for his mother's medical bills. Caitlin discovers that Jay is dying of an illness caused by Zoom stealing his speed.
34	11	"The Reverse-Flash Returns"	Michael A. Allowitz	Aaron Helbing & Todd Helbing	January 26, 2016	3J5661	3.71[40]
The team discovers Turtle is dead and Jay suspects Dr. Wells is responsible. Meanwhile, Cisco asks Dr. Wells for help in controlling his vibing abilities. Harrison determines they are connected to Cisco's fear response and triggers a vibe which alerts the team that Eobard Thawne is back. Wells surmises that this version of Eobard is from a point in the future before he went back in time to kill Barry's mother and was thus protected from being erased with Eddie's sacrifice. Retrofitting goggles to induce Cisco's vibes, the team learns that Eobard is planning to use tachyons to return to his future. Barry arrives and destroys Eobard's tachyon machine. After a race around the city, Barry stops Eobard and imprisons him at the particle accelerator. However, his capture causes a rupture in the timeline that threatens to kill Cisco, so Barry is forced to send Eobard back to the future to save his friend. Meanwhile, Patty discovers Barry is the Flash but, when he refuses to acknowledge it, she chooses to leave the city. Caitlin tries to find a cure for Jay's illness.
35	12	"Fast Lane"	Rachel Talalay	Story by: Brooke Eikmeier Teleplay by: Kai Yu Wu & Joe Peracchio	February 2, 2016	3J5662	3.66[41]
Right before the particle accelerator explosion, Joey Monteleone was thrown into a tar pit and left for dead. Sealed away, he is freed two years later with the ability to turn his body into molten tar. He sets out to get revenge on those who attempted to kill him. Meanwhile, Dr. Wells creates a device to siphon Barry's speed energy and attaches it to his suit. He and Barry also successfully find a way to close the breaches to Earth-2. When Barry goes after Joey, the device works and permanently steals a portion of Barry's speed, slowing him down. Wells gives the energy to Zoom, who demands the rest. While going after Joey a second time, Iris is injured when Barry is too slow to save her. Watching Barry wrestle with the guilt of Iris' injury, Wells confesses. Wells pleads his case, asking to be returned to Earth-2 and have Barry seal the breaches so Zoom cannot re-enter. After stopping Joey, Barry realizes that Wells was only trying to save his daughter, which the rest of them would have done for their families. The team informs Wells that he will return to Earth-2, but that Barry and Cisco will be going with him to save his daughter.
36	13	"Welcome to Earth-2"	Millicent Shelton	Story by: Greg Berlanti & Andrew Kreisberg Teleplay by: Katherine Walczak	February 9, 2016	3J5663	3.96[42]
Before heading to Earth-2, Barry closes all but one of the breaches so that Zoom has no other way to travel between the parallel Earths. Using the last breach at S.T.A.R. Labs, Barry, Cisco, and Dr. Wells travel to Earth-2, but there is a surge of energy that destabilizes the breach. The trio will be stuck in Earth-2 until Caitlin and Jay can fix the speed cannon. Barry decides to impersonate his Earth-2 self to get more information on Zoom. He later meets Iris and Joe of Earth-2 and learns that Iris works for the CCPD while Joe is a singer at a jazz bar. Barry is attacked by Earth-2's Caitlin and Ronnie Raymond, known here as Killer Frost and Deathstorm, agents of Zoom. In the attack, Joe is killed. Cisco attempts to help the police stop the pair, but is confronted by his own evil doppelganger, "Reverb". Cisco discovers Reverb has greater power, including control over nervous systems. Barry tries to rescue him, but is stopped by Reverb and Deathstorm. Zoom arrives, kills Reverb and Deathstorm for harming the Flash, and then imprisons Barry alongside Jesse. Meanwhile, Jay reveals to Caitlin that he invented Velocity-6 on his Earth and that it is the real reason why he lost his speed and is dying.
37	14	"Escape from Earth-2"	JJ Makaro	Story by: Todd Helbing & Aaron Helbing Teleplay by: David Kob	February 16, 2016	3J5664	3.90[43]
Zoom realizes that Dr. Wells has returned to Earth-2 and issues a demand to the citizens of Central City to turn him in. Zoom attacks S.T.A.R. Labs looking for Wells and Cisco, but they manage to escape with the Earth-2 Barry. Wells, Cisco, and Barry update Iris on what happened with the Earth-1 Barry, so they all set out to find Killer Frost in the hope that she will lead them to Zoom. After a fight, Killer Frost agrees to take the team to Zoom. The team arrives to rescue Barry and Jesse, but Zoom shows up too. The team is able to escape while Killer Frost keeps Zoom frozen and unable to move, but a third unidentified prisoner is left behind. On Earth-1, Caitlin creates "Velocity 9", a compound to temporarily give Jay his speed so that he can stop a new metahuman named Geomancer. Caitlin discovers that, when Jay uses Velocity 9, the serum starts to cure his illness. Jay, Caitlin, and Joe stabilize the breach and allow Barry, Cisco, Wells, and Jesse to return, but Zoom kills Jay and pulls him back through the closing breach to Earth-2.
38	15	"King Shark"	Hanelle Culpepper	Benjamin Raab & Deric A. Hughes	February 23, 2016	3J5665	3.80[44]
Wells, Cisco, and Barry agree not to discuss what happened on Earth-2 for fear of repercussions. While everyone tries to move on, the humanoid shark-monster that Wells stopped, known as "King Shark," escapes A.R.G.U.S. custody and heads for Central City to kill the Flash. John Diggle and Lyla Michaels arrive to warn Barry, which prompts him to look for King Shark and put a stop to him for good. Barry teams up with Diggle, Lyla, and the rest of A.R.G.U.S. to track King Shark, but he shows up at Barry's home looking for the Flash, tracking Barry's electrical field. A.R.G.U.S. arrives and forces King Shark to retreat. The teams attempt to trick King Shark into a trap, but the bait does not work. Barry forces King Shark to chase him out on the water and, when he is far enough, creates an electrified underwater cyclone that subdues King Shark, and allows A.R.G.U.S. to imprison him again. Later, Barry vows to open a breach back to Earth-2 to stop Zoom. Back on Earth-2, it is revealed that, underneath his mask, Zoom looks exactly like Jay.
39	16	"Trajectory"	Glen Winter	Lauren Certo & Lilah Vandenburgh	March 22, 2016	3J5666	3.00[45]
The Flash team work to train Barry to get faster so that he can stop Zoom. However, they hit a roadblock and decide to go out to have fun and decompress. While they are at a club, another speedster shows up and robs everyone before escaping. A Mercury Labs employee, Eliza Harmon, turns out to be the speedster, who developed Velocity-9 from samples Caitlin gave her to help with Jay's illness. Operating under the name "Trajectory", she invades S.T.A.R. Labs, imprisons Barry, and demands more V-9. After she threatens Jesse's life, Dr. Wells and Caitlin make more of the drug for Eliza, who then speeds off to wreak havoc on the city. Barry tracks her down and tries to talk Eliza into giving up. She refuses and injects more V-9 into her system before speeding off. Barry watches as Eliza's speed becomes so intense that her lightning turns blue and she disintegrates. Meanwhile, Jesse decides to leave the city to experience the world on her own. Based on what Barry saw from the overuse of V-9, the similarities between Zoom's speed and Jay's sickness, and Cisco's "vibe", the team concludes that Jay is Zoom.
40	17	"Flash Back"	Alice Troughton	Aaron Helbing & Todd Helbing	March 29, 2016	3J5667	3.39[46]
Barry travels back in time to when Hartley Rathaway attacked the team, and switches places with his past self, in order to have Dr. Harrison Wells/Eobard Thawne help him solve the Speed Force equation. However, after a Time Wraith follows Barry to the past, Eobard deduces Barry's deception and attempts to kill him. Barry is able to convince Eobard that his plan succeeds in the future, but that in order to maintain it, he must help Barry become faster. The wraith comes to the lab, where Caitlin and Cisco are forced to accept help from a captured Hartley to deter the wraith. Afterward, the Barry from the current time arrives, forcing an explanation of the time travel event. Eobard provides the future Barry with the information needed to solve the formula, so that he can return to his time. Before he leaves, Barry tells Caitlin and Cisco to find a way to stop the wraith. As Barry prepares to make the jump through time, the wraith arrives, which forces the past timeline's Barry to intervene, so that his future self can return. Back in his time, Barry is confronted by the wraith again, but a reformed Hartley arrives with his sonic gauntlets and defeats the wraith.
41	18	"Versus Zoom"[lower-alpha 3]	Stefan Pleszczynski	Joe Peracchio & David Kob	April 19, 2016	3J5668	3.03[48]
Years earlier on Earth-2, a young Hunter Zolomon watches as his father murders his mother and is subsequently sent to the local orphanage. In present day, Barry tests the tachyon accelerator and is able to enhance his speed four times greater than normal. Barry decides to re-open a breach back to Earth-2, and he believes that Cisco's powers are the key to opening the portals. Meanwhile, Wells recounts how the particle accelerator explosion on his Earth created Zoom. Zolomon was a convicted serial killer as an adult, who was receiving electroconvulsive therapy during the explosion, during which he received his powers. Cisco opens a breach and Zoom immediately comes through, chasing Barry back to S.T.A.R. Labs. There, Barry uses images of Zoom's parents as a distraction to trap him, but Zoom manages to escape, claiming to be "the darkness". Zoom kidnaps Wally and demands Barry's speed in exchange for Wally's life. Barry agrees, so Wells siphons all of his speed force, leaving Barry powerless. Zoom injects the speed force into himself, and he kidnaps Caitlin with his enhanced speed, before escaping.
42	19	"Back to Normal"	John F. Showalter	Brooke Roberts & Katherine Walczak	April 26, 2016	3J5669	3.39[49]
As Barry adjusts to life without his powers, Wells decides to leave the lab to look for Jesse. Shortly after speaking with her, Wells is attacked and kidnapped by Griffin Grey, who demands that Wells find a cure for his metahuman abilities. Grey has superhuman strength, but he is also aging rapidly. Barry discovers that when Grey uses his super strength, he accelerates the aging process. Barry, Joe, and Cisco manipulate Grey into exerting his powers until he ages and dies as a weak, old man; his body then reverts back to its 18-year-old self. To fight Zoom, Wells offers to recreate the circumstances that gave Barry his speed. On Earth-2, Hunter tells Caitlin that he kidnapped her because he is in love with her. Caitlin encounters her doppelganger, Killer Frost, who was captured by Zoom. Frost convinces Caitlin to help her escape, but then attempts to kill her. Zoom arrives and kills Frost, then warns Caitlin not to free the man in the iron mask. Later, Zoom decides to conquer other Earths in the multiverse, and he takes Caitlin with him back to Earth-1.
43	20	"Rupture"	Armen V. Kevorkian	Kai Yu Wu & Lauren Certo	May 3, 2016	3J5670	3.34[50]
With Barry powerless, the team rigs a hologram of the Flash to stop crime around the city so that no one knows the truth. Wells again proposes recreating the particle accelerator explosion. Barry goes to his father, Henry, for advice, who returns with him back to Central City. Henry argues with Wells over his procedure for returning Barry's powers, concerned for his son's safety. Zoom and Caitlin arrive back on Earth-1, with Zoom declaring the city under his control. The Earth-2 version of Dante Ramon, "Rupture", arrives on Earth-1 looking to kill Cisco for killing his Earth-2 brother. Zoom sends Rupture after the police to send the city a message. Barry and the police stop Rupture, but Zoom arrives and kills the officers himself, and Rupture for failing. He then publicly announces the Flash's disappearance. Realizing that he cannot stop Zoom without his powers, Barry agrees to Wells' plan. During the process, Barry is seemingly vaporized, while Jesse and Wally are caught in the blast.
44	21	"The Runaway Dinosaur"[51]	Kevin Smith	Zack Stentz	May 10, 2016	TBA	TBD
45	22	"Invincible"[52]	Jesse Warn	Story by: Greg Berlanti & Andrew Kreisberg Teleplay by: Brooke Roberts & David Kob	May 17, 2016	TBA	TBD
46	23	"The Race of His Life"[53]	Antonio Negret	Aaron Helbing & Todd Helbing	May 24, 2016	TBA	TBD

Notes

1. This episode continues in the Arrow episode "The Brave and the Bold".
2. This episode continues in the Arrow episode "Legends of Yesterday".
3. This episode intersects in the Supergirl episode "Worlds Finest".^[47]

Ratings

Season 1 (2014–15)

No.	Title	Air date	Rating/share (18–49)	Viewers (millions)	DVR (18–49)	DVR viewers (millions)	Total (18–49)	Total viewers (millions)
1	"Pilot"	October 7, 2014	1.9/6	4.83[7]	0.7	2.00	2.6	6.83[54]
2	"Fastest Man Alive"	October 14, 2014	1.7/5	4.27[8]	N/A	N/A	N/A	N/A
3	"Things You Can't Outrun"	October 21, 2014	1.5/4	3.59[9]	N/A	N/A	N/A	N/A
4	"Going Rogue"	October 28, 2014	1.4/4	3.53[10]	0.9	N/A	2.3[55]	N/A
5	"Plastique"	November 11, 2014	1.4/4	3.46[11]	0.9	N/A	2.3[56]	N/A
6	"The Flash Is Born"	November 18, 2014	1.4/4	3.73[12]	0.9	N/A	2.3[57]	N/A
7	"Power Outage"	November 25, 2014	1.4/4	3.47[13]	0.9	N/A	2.3[58]	N/A
8	"Flash vs. Arrow"	December 2, 2014	1.6/5	4.34[14]	1.0	2.31	2.6	6.65[59]
9	"The Man in the Yellow Suit"	December 9, 2014	1.5/5	4.66[15]	0.9	2.06	2.4	6.72[60]
10	"Revenge of the Rogues"	January 20, 2015	1.4/5	3.87[16]	1.0	2.41	2.4	6.27[61]
11	"The Sound and the Fury"	January 27, 2015	1.3/4	4.08[17]	1.0	2.20	2.3	6.28[62]
12	"Crazy for You"	February 3, 2015	1.3/4	3.60[18]	0.9	N/A	2.2[63]	N/A
13	"The Nuclear Man"	February 10, 2015	1.5/5	3.66[19]	N/A	N/A	N/A	N/A
14	"Fallout"	February 17, 2015	1.5/4	4.01[20]	0.9	N/A	2.4[64]	N/A
15	"Out of Time"	March 17, 2015	1.3/5	3.69[21]	1.0	2.34	2.3	6.09[65]
16	"Rogue Time"	March 24, 2015	1.2/4	3.33[22]	1.0	2.37	2.2	5.69[66]
17	"Tricksters"	March 31, 2015	1.3/4	3.67[23]	1.0	2.43	2.3	6.10[67]
18	"All Star Team Up"	April 14, 2015	1.4/5	3.67[24]	0.9	2.05	2.3	5.72[68]
19	"Who Is Harrison Wells?"	April 21, 2015	1.3/4	3.75[25]	0.9	N/A	2.2[69]	N/A
20	"The Trap"	April 28, 2015	1.5/5	3.93[26]	0.9	N/A	2.4[70]	N/A
21	"Grodd Lives"	May 5, 2015	1.4/5	3.62[27]	0.9	2.27	2.3	5.97[71]
22	"Rogue Air"	May 12, 2015	1.5/5	3.65[28]	0.9	N/A	2.4[72]	N/A
23	"Fast Enough"	May 19, 2015	1.5/5	3.87[29]	1.0	2.38	2.5	6.25[73]

Season 2 (2015–16)

No.	Title	Air date	Rating/share (18–49)	Viewers (millions)	DVR (18–49)	DVR viewers (millions)	Total (18–49)	Total viewers (millions)
1	"The Man Who Saved Central City"	October 6, 2015	1.4/5	3.58[30]	1.0	2.35	2.4	5.93[74]
2	"Flash of Two Worlds"	October 13, 2015	1.4/4	3.49[31]	0.8	2.06	2.2	5.52[75]
3	"Family of Rogues"	October 20, 2015	1.4/5	3.47[32]	0.9	2.05	2.3	5.60[76]
4	"The Fury of Firestorm"	October 27, 2015	1.4/4	3.43[33]	0.9	2.04	2.3	5.46[77]
5	"The Darkness and the Light"	November 3, 2015	1.5/5	3.87[34]	0.8	N/A	2.3[78]	N/A
6	"Enter Zoom"	November 10, 2015	1.5/5	3.63[35]	0.9	2.05	2.4	5.68[79]
7	"Gorilla Warfare"	November 17, 2015	1.4/4	3.46[36]	0.8	1.92	2.2	5.38[80]
8	"Legends of Today"	December 1, 2015	1.4/5	3.94[37]	0.9	2.12	2.3	6.07[81]
9	"Running to Stand Still"	December 8, 2015	1.3/4	3.55[38]	0.9	2.01	2.2	5.56[82]
10	"Potential Energy"	January 19, 2016	1.3/4	3.41[39]	1.0	2.06	2.3	5.48[83]
11	"The Reverse-Flash Returns"	January 26, 2016	1.4/5	3.71[40]	1.0	2.02	2.4	5.73[84]
12	"Fast Lane"	February 2, 2016	1.4/5	3.66[41]	0.8	1.86	2.2	5.53[85]
13	"Welcome to Earth-2"	February 9, 2016	1.6/5	3.96[42]	0.9	2.02	2.5	5.98[86]
14	"Escape from Earth-2"	February 16, 2016	1.5/5	3.90[43]	0.8	N/A	2.3[87]	N/A
15	"King Shark"	February 23, 2016	1.4/5	3.80[44]	0.9	1.96	2.3	5.77[88]
16	"Trajectory"	March 22, 2016	1.1/4	3.00[45]	0.9	1.96	2.0	4.96[89]
17	"Flash Back"	March 29, 2016	1.3/5	3.39[46]	0.9	1.92	2.2	5.31[90]
18	"Versus Zoom"	April 19, 2016	1.2/4	3.03[48]	TBD	TBD	TBD	TBD
19	"Back to Normal"	April 26, 2016	1.3/5	3.39[49]	TBD	TBD	TBD	TBD
20	"Rupture"	May 3, 2016	1.3/5	3.34[50]	TBD	TBD	TBD	TBD
21	"The Runaway Dinosaur"	May 10, 2016	TBD	TBD	TBD	TBD	TBD	TBD
22	"Invincible"	May 17, 2016	TBD	TBD	TBD	TBD	TBD	TBD
23	"The Race of His Life"	May 24, 2016	TBD	TBD	TBD	TBD	TBD	TBD

Home media

Season	DVD release dates			Blu-ray release dates
	Region 1	Region 2	Region 4	Region A	Region B
1	September 22, 2015[91]	September 21, 2015[92]	September 23, 2015[93]	September 22, 2015[91]	September 21, 2015[94]

References

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