The Octonauts

The Octonauts
Kwazii, Barnacles and Peso
Genre	Children Animation Action Adventure film
Created by	Meomi: Vicki Wong & Michael C. Murphy
Written by	Stephanie Simpson (head writer) Billy Aronson Glen Berger Ian Carney Cydne Clark Cusi Cram Sarah Durkee Steve Granat Carin Greenberg Jonathan Greenberg Peter Hirsch Adam Idelson Dave Ingham Susan Kim Catherine Lieuwen Myles Mcleod Allan Neuwirth Sascha Paladino Gabe Pulliam
Directed by	Darragh O'Connell Henry Lenardin-Madden (uncredited)
Creative director(s)	Stephen Robinson
Voices of	Simon Greenall Rob Rackstraw Paul Panting Keith Wickham Jo Wyatt Teresa Gallagher Michael C. Murphy
Theme music composer	Darren Hendley
Country of origin	United Kingdom Ireland
Original language(s)	English
No. of series	3
No. of episodes	96 (currently) (list of episodes)
Production
Executive producer(s)	Kurt Mueller Stephanie Simpson Cathal Gaffney Darragh O'Connell Jackie Edwards (CBeebies)
Producer(s)	Adam Idelson Karen Ialacci Gillian Higgins
Running time	65 x 11 minutes 3 x 23 minutes
Production company(s)	Brown Bag Films
Release
Original network	CBeebies (UK) Disney Junior (US)
Original release	4 October 2010 – present
External links
Meomi official website

The Octonauts is a British children's television series, produced by Silvergate Media for the BBC channel CBeebies. The series is animated in Ireland by Brown Bag Films but uses British voice actors. The TV series is based on American-Canadian children's books written by Vicki Wong and Michael C. Murphy of Meomi Design Inc.

The Octonauts follows an underwater exploring crew made up of stylized anthropomorphic animals, a team of eight adventurers who live in an undersea base, the Octopod, from where they go on undersea adventures with the help of a fleet of aquatic vehicles.

The subject matter is reminiscent of Star Trek and Thunderbirds^[1] blended with Jacques Cousteau. Although it is science fiction as regards its technology, the exotic creatures and locations that the crew encounter are real marine animals in their natural habitats.

Books

The original books were first published in the USA by Immedium in 2006, and were republished in the UK by Harper Collins in 2009. Six titles by Meomi have been published:

• The Octonauts & the Only Lonely Monster, about an Architeuthis (Giant Squid).
• The Octonauts & the Sea of Shade, about a world where everyone's shadows have gone missing.
• The Octonauts & the Frown Fish, about a glum-looking catfish.
• The Octonauts & the Great Ghost Reef, about a dying coral reef.
• The Octonauts Explore the Great Big Ocean, about the search for Tunip the Vegimal's home.
• The Octonauts & the Growing Goldfish, about Dunkie, a giant goldfish who won't stop growing.

TV series

In 2010, The Octonauts was adapted into a 52 episode CGI animated television series co-produced by Chorion and Brown Bag Films. It first aired in the UK on 4 October 2010 on CBeebies, a BBC television channel for the under 7's. The first series ended in February 2011, but continued to be aired as repeats. A second series of 22 episodes commenced in November 2012.

The Octonauts had its US premiere on the Disney Channel in January 2012, however many of the characters' voices were redubbed to give them American accents (Hispanic in the case of Peso and Pinto), although Captain Barnacles, Kwazii and Prof. Inkling retained their original British voices.^[2] It has also been shown in Ireland (RTÉ Two), Canada (Treehouse TV), and Australia (ABC Television). The show has been translated and shown in French (TF1), Spanish and Portuguese (Discovery Kids Latin America), Finnish (YLE TV2), and Welsh (S4C).^[3]

The series was made with the help of marine biologists Dr. Lara A. Ferry-Graham and Dr. Michael H. Graham, who had previously worked on the making of Finding Nemo.^[1]

The TV show is episodic, with each 11 minute episode seeing them encountering an unusual but real sea creature as they explore strange underwater worlds. Often they must discover a vital biological or behavioural fact about that creature to rescue it or themselves from danger. The stories usually feature three main characters: Captain Barnacles, Kwazii and Peso, with the other five Octonauts acting in supporting roles.

In the TV series they use five sea-creature inspired underwater vehicles called GUP-A to GUP-E, the pedal driven GUP-F, driven by Captain Barnacles and Kwazii, which appears in Episode 10 of Series 1 (The Speedy Sailfish), the narwhal-shaped submarine Gup-S that can split so one half goes over land, the train-shaped vegimal-driven Gup-V, and the powerful and sturdy tracked GUP-X, first appearing in Episode 52 of Series 1 (The Great Christmas Rescue).

The opening theme tune finishes with the chant "Explore! - Rescue! - Protect!", which informs the narrative of all the episodes.

TV spin-off books

A series of shorter books based on individual episodes from the TV series is being published by Simon & Schuster. These titles can be distinguished by the "As seen on TV" label on the covers and are not written or illustrated by Meomi.^[4] The books have the same titles as the episodes they are based on.

Reception

The TV series was well received when shown on CBeebies in the UK and by ABC in Australia. According to the authors' website, it was the No. 1 pre-school age show in the UK, and the first pre-school show to be ranked in the top ten by older audiences (aged 4–15).^[5] In Australia it was the top-ranked ABC programme for 5-12 year olds in January 2011, with ABC calling its first month an "unprecedented success online and on-air".^[6] It has been rated 7.4 out of 10 on IMDb.^[7] In 2013, Octonauts was nominated for (but did not win) two awards: an International Emmy Award in the "Kids—Preschool" category^[8] and an Irish Film and Television Award in the "Best Children's/Youth Programme" category.^[9] The Octonauts DVD boxed set was 4th best-selling Children's TV DVD at Amazon UK as of 7 April 2013.^[10]

Characters

Part	Name	Species	Voice cast	Features
Captain	Barnacles	Polar bear	Simon Greenall (speaking voice) Ross Breen (singing voice)	Barnacles is the brave polar bear captain of the Octonauts. He can drive any ship or gup, and is strong enough to lift a giant clam. Catchphrases: "Octonauts, let's do this", "Sound the Octo-Alert!" and "Octonauts, to the launch bay!".
Lieutenant and Cryptozoologist	Kwazii	Cat	Rob Rackstraw	A cat who speaks in a Cockney accent. Kwazii is a daredevil cat with a mysterious pirate past. He believes in many sea monsters such as the Nackerwhack, Tri-Toothed-Terror, Giant Shrimp Monster, Monster of Creepy Cove and other monsters and likes to drive fast in the Gup-B. In the episode "The Octonauts and the Giant Spider Crab", it is revealed that he has a fear of spiders. Catchphrase: "Shiver me whiskers" & "Yeow!!".
Medic	Peso	Penguin	Paul Panting (UK) Wayne Grayson (US)	He is a penguin with a British accent (Spanish accent in the US version) and the medic of the Octonauts. He's not too fond of scary situations, but if someone is hurt or in trouble he can be the bravest Octonaut of all. He has a younger brother called Pinto. Catchphrase: "Flappity flippers!".
Oceanographer and Founder	Professor Inkling, Inkling, or Professor	Grimpoteuthis (Dumbo octopus)	Keith Wickham	An octopus who speaks in a posh accent. Inkling brought the Octonauts together, to study the oceans and have adventures. Catchphrase: "Fascinating!"
Scientist (Marine biologist)	Shellington (Dr)	Sea otter	Keith Wickham	A sea otter who speaks with a Scottish accent. Shellington is a scientist who knows a lot about ocean creatures. He is not a very good driver and once crashed the GUP-D. Catchphrase: "Jumping jellyfish!" and "Fascinating".
Engineer	Tweak	Rabbit	Jo Wyatt Jaimie Kelton (US, season 1)	A rabbit who speaks with a Southern-American accent. Tweak lives and works in the launch bay. She often invents things like the GUP-X, GUP-S, the Octo-Mach suit, and the Friend Finder she made for her friend, Sandy the leatherback sea turtle. She often refers to Captain Barnacles as "Cap". Catchphrases: "Right away, Cap!" and "...faster than you can say 'buncha munchy crunchy carrots'!".
Information technology Officer and Photographer	Dashi (Sauci In The Books)	Dog (Dachshund)	Teresa Gallagher	A dog who speaks with a New Zealand accent (American in the US version). Dashi is the photographer for the Octonauts, and takes care of all the computers aboard the Octopod. Catchphrase: "Already on it captain!".
Ship's Cook and Gardener	Tunip	Vegimal	Michael C. Murphy	Tunip is half-animal, half-vegetable (technically a turnip), like all the vegimals. He loves to make kelp cakes and work in the garden-pod. He and the other vegimals speak another gibberish-like language that only Shellington understands (sometimes) since he discovered them many years earlier. He often faints at shocking news. Catchphrase: "(adorable noises in Vegimalese)".

Note: Recent UK editions of the books changed Sauci's name to Dashi to match the television series.

Other Vegimals

• Barrot, half-bass, half-carrot. Although nervous, he can go super fast in an emergency.
• Grouber, half-grouper, half-ginger. He is big and can eat almost anything.
• Tominnow, half-minnow, half-tomato. He is the littlest one, but he is also a daredevil.
• Codish, half-cod, half-radish. He is very clumsy and also causes accidents.

Recurrent minor characters

• Calico Jack, a pirate cat and Kwazii's grandfather. His exploits are frequently talked about but he is assumed long-dead until he finally makes an appearance in the Amazon Adventure special. In real life, the pirate Calico Jack was the creator of the Jolly Roger, though the Octonauts character's name might also be an allusion to the Calico cat.
• Pinto, Peso's little brother, a young penguin who visits in episode 24, episode 32 and the Great Penguin Race special. He initially aspires to be a pirate like Kwazii but later decides he'd rather be a medic like Peso.
• Sandy the sea turtle, a good friend of Tweak's. She swims long distances and makes appointments to meet the Octonauts in several episodes.
• Boris the narwhal, a friend of Captain Barnacle's from when he was young. Boris remains in the Arctic but the Octonauts meet him in several episodes.
• Pearl the sea otter and Shellington's married sister who recently had a baby, first seen in the episode The Urchin Invasion.

Vehicles

• The Octopod is their mobile home base and the biggest vehicle. It is built to look like a giant octopus.
• The GUP-A is propeller-powered and Captain Barnacles' favorite. It is built to look like an anglerfish.
• Kwazii's favorite, the GUP-B is a turbo sub so is the fastest of all GUPs. It is built to look like a tiger shark.
• The strong GUP-C has a towline and is powerful enough to tow an elephant seal. It can also be used as an icebreaker when fitted with a special reinforced prow. It is built to look like a blue whale.
• Multi-purpose GUP-D has two claws, two drills and six legs. It is also Tweak's favorite. It is built to look like a manta ray (or a crab when legged).
• The GUP-E is an ambulance GUP and colored green. A tank behind can be filled with water for creatures with gills. It is built to look like a guppy.
• The GUP-F was a pedal-powered metal-framed vehicle only seen in series 1, episode 10, Octonauts and the Speedy Sailfish, used to round up the runaway GUPs A-E. It was built to look like a clownfish. In the episode "The Artificial Reef" the GUP-F is destroyed by a hurricane and is converted into an artificial reef. In the same episode, it is also revealed by Tweak that it was the very first prototype GUP built.
• The GUP-H is built to look like a dragonfly, to soar above the sea, and watch the animals hop in and out of the water. It is first seen in series 4, episode 1, The Poison Dart Frogs.
• The GUP-I is an polar exploration station and rugged vehicle first seen in the 8th special, Operation Deep Freeze. It is built to look like a water bear.
• The GUP-K is a half air-boat, half-tank vehicle that can float on surface and is first seen in the 9th and latest special, The Great Swamp Search to save Tweak's hometown the Everglades from fire. It is built to look like a crocodile or an alligator.
• The GUP-X is a powerful and sturdy tracked vehicle presented to Captain Barnacles as a Christmas present from Tweak. It can split into 3 sections, for instance, a glider, the 'Octo-Ski' and its central main section with the caterpillar tracks. It is first seen in series 1, episode 52, The Great Christmas Rescue. It is built to look like a horseshoe crab.
• The Deep Sea Octolab is a moveable base from which the deepest parts of the ocean can be studied and first appears in the 4th special episode, The Mariana Trench Adventure. It is dome-shaped and stands on springy legs to cope with subterranean tremors.
• The GUP-V is a vehicle designed by the Vegimals in the 5th special episode, A Very Vegimal Christmas. It is shaped like a train.
• The GUP-S is an Antarctic exploration vehicle first seen in the 6th special episode The Over Under Adventure. Like the GUP-X, it can split in 2 sections, with the front part forming an amphibious snowmobile called the Octo-Sled. The Gup-S is built to look like a swordfish or narwhal, with a tusk-like ice-penetrating heated drill at the front.

Episodes

Series overview

Season		Episodes	Originally aired
			First aired	Last aired
	1	52	October 4, 2010	December 24, 2011
	2	22	November 19, 2012	September 3, 2013
	3	20	September 4, 2013	June 29, 2014
	4	TBA	September 23, 2015	TBA

Series 1 (2010-2011)

#	Title	Original air date[11]
1	"Octonauts and the Whale Shark"	4 October 2010
When Dashi is swallowed by a whale shark she thought was a cave, the Octonauts venture inside it to rescue her.
2	"Octonauts and the Undersea Storm"	5 October 2010
An undersea storm is approaching so Kwazii helps some creatures on a coral reef reach safety, but then he crashes the Gup-B while trying to race back to the Octopod. When the GUP-C's tow-rope snaps while rescuing him, some reef lobsters Kwazii helped earlier lend a hand by holding the broken rope ends together with their strong claws.
3	"Octonauts, the Crab, and the Urchin"	6 October 2010
Barnacles and Kwazii investigate a disruption on a nearby reef; A carrier crab and the urchin it keeps on top of its shell as a defence against predators[12] have a falling out and just can't seem to get along.
4	"Octonauts and the Walrus Chief"	7 October 2010
A walrus mistakes Peso's medical bag for a clam and takes it home. Walruses don't like other animals near their colonies, so Captain Barnacles, Kwazii and Peso disguise themselves as a fellow walrus to sneak into the dangerous colony and retrieve the medical bag.
5	"Octonauts and the Flying Fish"	8 October 2010
A school of flying fish accidentally make off with Professor Inkling's rare book and the Octonauts rig up the Gup-B to get it back.
6	"Octonauts and the Giant Squid"	11 October 2010
The Octonauts set out to find and photograph Inkling's long lost cousin, the giant squid.
7	"Octonauts and the Orcas"	12 October 2010
An enormous orca whale is stranded on a beach, and with some help from some crabs, the Octonauts manage to rescue it.
8	"Octonauts and the Great Algae Escape"	13 October 2010
The crew must catch a runaway Octopod after it is hijacked by a group of crustaceans who are trying to flee an area of seabed being polluted with algae by a broken pipeline.
9	"Octonauts and the Remipedes"	14 October 2010
Shellington goes to search for a group of Remipedes in a cave but he hasn't driven the GUP-D before and ends up crashing it and breaking it. The other Octonauts try to save him but they get lost too. Luckily, a group of blind Remipedes help them find their way out of the cave.
10	"Octonauts and the Speedy Sailfish"	15 October 2010
Tweak's remote control system for the Gups malfunctions, so Barnacles and Kwazii are forced to chase after them with the pedal-driven Gup-F. Luckily some speedy Sailfish, the fastest fish in the sea, are persuaded to show their off prowess by rounding up the speeding Gups.
11	"Octonauts and the Blobfish Brothers"	18 October 2010
The Octonauts must evacuate some slow moving, gelatinous Blobfish before an undersea volcano erupts.
12	"Octonauts and the Monster Map"	19 October 2010
Kwazii has a pirate map showing the location of a sunken treasure ship which allegedly harbours a Kraken-like sea monster (but which turns out to be an octopus which can change colour to camouflage itself).
13	"Octonauts and the Lost Sea Star"	20 October 2010
A sea star (starfish) named Twinkle has got lost on the beach, but the Octonauts have to search the sea from top to bottom to find its home, as there are nearly 2000 species of sea star living at all levels of the ocean. On a reef in the Sunlight Zone they encounter a sunflower seastar and a predatory porcupine pufferfish. In the Twilight Zone they encounter brittle stars and get chased into a cave by a wolf eel, where they notice Twinkle glows in the dark, which means it is from the Midnight Zone. They end up crashing the Gup at the bottom of an ocean trench, but luminous sea stars light the way out for them.
14	"Octonauts and the Albino Humpback Whale"	21 October 2010
The Octonauts think they've seen a ghost but it turns out to be an albino humpback whale which is moaning from the pain of some nasty sunburn.
15	"Octonauts and the Giant Kelp Forest"	22 October 2010
Kwazii's favorite sub, the Gup B, goes missing in a huge kelp forest due to Kwazii pressing the eject button while the engine was active (Something Tweak advised him not to do) and Kwazii, Captain Barnacles, and Shellington must retrieve it, meeting strange and interesting creatures along the way.
16	"Octonauts and the Enemy Anemones"	25 October 2010
The Octonauts land on an island for a picnic but must first help some crabs trapped between two warring groups of aggregate anemones. Meanwhile back on the Octopod, a hoard of out of control puddings are attacking.
17	"Octonauts and the Narwhal"	26 October 2010
Cruising underwater to Captain Barnacles' homeland, the North Pole, the Octopod gets trapped in the Arctic sea ice. But one of Barnacles' old friends, Boris the narwhal, helps them to break through the ice with his long tusk.
18	"Octonauts and the Midnight Zone"	27 October 2010
The Octonauts explore the deepest part of the ocean where no daylight ever reaches and find some hydrothermal vents where vent fish, limpets and tube worms live, and also discover a new species of worm to put in Shellington's book.
19	"Octonauts and the Snapping Shrimp"	28 October 2010
A little shrimp with a big claw makes such a loud noise that it stuns the Octonauts. A video of it made by Dashi reveals that the sound and accompanying shock wave are caused by the shrimp making a cavitation bubble with her claw.
20	"Octonauts and the Snot Sea Cucumber"	29 October 2010
An injured snot sea cucumber named Slippy gets loose on the Octopod, so to let her breathe, they flood the ship!
21	"Octonauts and the Giant Whirlpool"	1 November 2010
The Octonauts race against time to rescue Tweak's pal, a leatherback sea turtle named Sandy, when she is swept away in a current (leading to a whirlpool) from the Australian coast where she was about to lay her eggs.
22	"Octonauts and the Hermit Crabs"	2 November 2010
With half the crew stranded in a rock pool due to a low tide, Peso and Tweak help to remove a stuck hermit crab from the shell it has outgrown.
23	"Octonauts and the Mixed Up Whales"	3 November 2010
The Octonauts clean and repair the Octopod, but the loud noises they are creating confuse the sonar of two blue whales who are looking for each other so much that they almost crash into the ship.
24	"Octonauts and the Kelp Forest Rescue"	4 November 2010
Peso's little brother Pinto visits the Octonauts and gets an eyepatch from Kwazii. He becomes more interested in being a pirate than a medic (stating that he wanted to be a 'real' Octonaut like Kwazii). But when he helps Barnacles, Kwazii and Peso in a mission to help Dashi and Shellington escape, he begins to like being a medic. This is the only episode where no one sounded the Octo-Alert at all.
25	"Octonauts and the Decorator Crab"	5 November 2010
The Octonauts stake out a thief, who turns out to be a decorator crab, stealing their things to decorate its shell.
26	"Octonauts and the Beluga Whales"	6 December 2010
The Octonauts lead a pod of beluga whales stuck under the pack ice to safety by getting them to follow Peso while he's playing the same tune as the beluga's song on his xylophone.
27	"Octonauts and the Hungry Pilot Fish"	7 December 2010
The Octonauts are chased by a whitetip shark only to discover all it really needed was a pilot fish to clean its teeth, and it just so happens that they have just met a lonely pilot fish that is hungry for action.
28	"Octonauts and the Vampire Squid"	8 December 2010
On a solo training dive to the Midnight Zone, Peso encounters a hurt vampire squid. Scared by the sudden arrival of Kwazii and Captain Barnacles it sprays them with sticky bioluminescent mucus and flees, but in the end Peso is able to help it.
29	"Octonauts and the Seahorse Tale"	9 December 2010
After a storm, the Octonauts help a female seahorse search for her missing mate. She tells them to Kwazii's surprise that the missing male seahorse is about to give birth to baby seahorses!
30	"Octonauts and the Giant Jelly"	10 December 2010
The Octonauts must rescue Peso when he gets trapped inside a giant comb jelly!
31	"Octonauts and the Cookiecutter Sharks"	13 December 2010
Some mysterious holes that keep appearing in the Octonauts' equipment turn out to be the work of cookiecutter sharks whose bioluminescence initially made them invisible against the light coming down from the sea surface.
32	"Octonauts and the Oarfish"	14 December 2010
Dashi catches a glimpse of an elusive creature that appears to be a giant sea serpent and manages to photograph its tail. The truth is stranger than fiction when it appears to be an awesomely, long oarfish.
33	"Octonauts and the Combtooth Blenny"	15 December 2010
Kwazii crashes the GUP-E, leaving him and Peso marooned on a desert island inhabited by a fish that can walk on land. Their SOS message to the Octonauts is relayed in increasingly garbled form via the blenny, a squid, and an angler fish.
34	"Octonauts and the Jellyfish Bloom"	16 December 2010
Shellington gets trapped by sea nettle jellyfish whilst observing garden eels in the GUP-E. Barnacles, Kwazii and Peso attempt to save him but Barnacles gets stung by a jellyfish. Luckily, Peso heals it using vinegar and then goes to save Shellington along with Kwazii.
35	"Octonauts and the Baby Dolphin"	29 December 2010
A young dolphin follows Kwazii home while he's babysitting it and the Octonauts must search for its mother.
36	"Octonauts and the Scary Spookfish"	24 January 2011
Peso gets jammed in an ocean trench when the GUP-E's battery dies and is surprised by a strange deep sea fish with a transparent head: a Spookfish called Boo, whose ability to see vertically comes in handy as GUP-C winches GUP-E back up the narrow trench.
37	"Octonauts and the Arctic Orcas"	25 January 2011
Captain Barnacles and Peso get lost in the icy Arctic sea when the GUP-E gets stuck in an iceberg and the Gup finder is damaged. Unfortunately, a pod of orcas help Kwazii find them.
38	"Octonauts and the Slime Eels"	26 January 2011
In the North Atlantic, Kwazii searches the sunken shipwreck of his pirate grandfather, Calico Jack, for his gold spyglass. It's guarded by blind hagfish (slime eels), but their slime unexpectedly helps him when he gets stuck. Kwazii ends up leaving the spyglass because it's now the home of sea creatures.
39	"Octonauts and the Enormous Elephant Seal"	27 January 2011
An enormous elephant seal is brought into the Octopod to moult as moulting underwater is dangerous. But then he overstays his welcome in the Octopod.
40	"Octonauts and the Sardine School"	29 January 2011
The Octonauts must work together as a team to help a lost sardine find her school.
41	"Octonauts and the Dolphin Reef Rescue"	31 January 2011
Peso and the gang try to cure bleached dead areas on a coral reef by transplanting healthy coral, but a pod of playful dolphins make mischief for them until they realise that helping can be fun too.
42	"Octonauts and the Eel Ordeal"	1 February 2011
In a rare journey into fresh waters (a river), the Octonauts follow some migrating eels and help an injured eel on his difficult journey when he gets stranded from the others.
43	"Octonauts and the Marine Iguanas"	2 February 2011
The team are preparing for a feast of red seaweed on the Galapagos Islands but a trio of salt-sneezing marine iguanas raid the Octopod and eat it all!
44	"Octonauts and the Dwarf Lanternshark"	3 February 2011
Down in the darkness of the ocean deep, Peso and the Octonauts must help a tiny, injured dwarf lanternshark. But they have to find him first!
45	"Octonauts and the Pirate Parrotfish"	4 February 2011
Kwazii discovers Calico Jack's Parrot Island treasure map behind an old photo. Whilst looking for the island they meet a parrotfish, who helps them clear away dense algae and hide from vicious moray eels.
46	"Octonauts and the Electric Torpedo Rays"	7 February 2011
Some electric torpedo rays give the Octopod a jump-start when its batteries go flat during a trip to see Tweak's pal, Sandy the leatherback sea turtle.
47	"Octonauts and the Crafty Cuttlefish"	8 February 2011
Captain Barnacles allows Tunip to use his Octo-compass. But when Tunip loses it, a cuttlefish takes it.
48	"Octonauts and the Lost Lemon Shark"	9 February 2011
The Octonauts look after a lemon shark who has hurt his nose and can't find his way home.
49	"Octonauts and the Humuhumunukunukuapua'a"	10 February 2011
The Octopod's waterworks become flooded with frightened Humuhumu fish. The Octonauts must find a way to flush them out.
50	"Octonauts and the Giant Spider Crab"	11 February 2011
The Octonauts help a 100-year-old spider crab which has got its leg trapped in a giant clam whilst en route to its own 100th birthday party. It turns out that Kwazii's afraid of spiders, but he still helps, even though he thought it was a real spider at first.
51	"Octonauts and the Great Penguin Race"	13 December 2010
See Octonauts special episodes
52	"Octonauts and the great Christmas Rescue"	24 December 2011
See Octonauts special episodes

Series 2 (2012-2013)

A second series of 22 episodes started on 19 November 2012 on the UK's CBeebies channel^[13] but was halted with no explanation after 10 episodes leading to criticism from viewers.^[14] Broadcasts resumed in March 2013 but stopped a week later (with the last 7 episodes still unaired) - then resumed again in September 2013.

#	Title	Original air date
1	"Octonauts and the Colossal Squid"	19 November 2012
The Octopod is grabbed by a colossal squid which drags it down into the depths. The Octonauts are unable to break free due to the hooks on the ends of the squid's tentacles. Fortunately the arrival of some sperm whales turns the squid from hunter to hunted.
2	"Octonauts and the Adelie Penguin"	20 November 2012
Kwazii and Peso have to babysit some penguin chicks whilst their parents go hunting for fish. Captain Barnacles uses the GUP-C's icebreaking powers to get them home when an iceberg and a perilous sea storm blocks the way.
3	"Octonauts and the Coconut Crabs"	21 November 2012
Kwazii is driving the GUP-B when a school of flying fish comes around and he is gliding with the fish Kwazii notices he is hit by an unbreakable coconut and it has the symbol of his grandfather Calico Jack so then Kwazii, Captain Barnacles, Peso, and Tweak get a family of coconut crabs to help him open it.
4	"Octonauts and the Great White Shark"	22 November 2012
Peso narrowly escapes when a hungry great white shark tries to eat him. Despite this he wants to help it after it injures its fin against the Octopod. The Octonauts use the Gup-X to turn the shark upside down and induce tonic immobility whilst Peso bandages it, but it comes round and in the end they escape by feeding it Tunip's fish biscuits to satisfy its hunger.
5	"Octonauts and the Sea Snakes"	23 November 2012
Dashi discovers that the octopod is being threatened by a whirlpool and then Tunip later sees that there are some strange objects in the Garden Pod so he goes and gets Shellington and he later sees that they are sea krait eggs. The Octonauts try to find all the snakes so they won't get sucked into the whirlpool. Then the Octonauts later discover that one of the snakes is missing the Octonauts venture throughout the octopod to find it. The snake ends up in HQ and reversing the ship and the octopod gets sucked into the whirlpool.
6	"Octonauts and the Bowhead Whales"	26 November 2012
Captain Barnacles' narwhal friends (see Series 1, episode 17) are trapped under the Arctic ice. After failing to rescue them with the GUP-C's icebreaker and the GUP-D's drill, they enlist the help of some bowhead whales whose massive heads can break through thick ice.
7	"Octonauts and the Jawfish"	27 November 2012
A jawfish father has lost the eggs he was brooding and the Octonauts must bring them safely back to him!
8	"Octonauts and the Porcupine Pufferfish"	28 November 2012
The Octonauts venture inside a whale shark again (see Series 1, episode 1), this time to rescue a porcupine puffer fish.
9	"Octonauts and the Damselfish"	29 November 2012
Some algae-eating fish need help dealing with damselfish that chase them off the algae they are farming.
10	"Octonauts and the Scared Sperm Whale"	30 November 2012
Peso tries to help a young timid sperm whale overcome his fear of deep diving, an ability it must later use to rescue Peso when he gets caught by a giant clam on the seabed.
11	"Octonauts and the Long-armed Squid"	11 March 2013
Peso and Kwazii search a creepy shipwreck in the midnight zone, looking for an injured creature that their friend the vampire squid (see Series 1, episode 28) has heard moaning in the dark. Peso soon finds an injured angler fish but the real source of the moaning turns out to be a long-armed squid, a strange ghostly white creature with elbows in its extraordinarily long tentacles, one of which has become trapped in the timbers of the wreck.
12	"Octonauts and the Fiddler Crabs"	12 March 2013
The Octopod's periscope breaks off during a storm and lands up on a beach, lost amongst other marine debris. The Octonauts clean up the beach whilst searching for the periscope but a resident colony of fiddler crabs mistake the GUP-D and its claw gestures for a hostile giant crab and attack. The GUP-D goes haywire with a fiddler crab at the controls and burrows under the beach causing a sink hole to appear which almost swallows them all up. In the end the crabs fill the hole in with the sand balls they regurgitate whilst feeding.
13	"Octonauts and the Manta Rays"	13 March 2013
A young manta ray needs help finding the secret manta ray feeding grounds. But when she and the Octonauts finally locate it, they find themselves caught in the middle of a feeding frenzy!
14	"Octonauts and the Swashbuckling Swordfish" "Octonauts and the Flying Swords" (US title)	14 March 2013
When Kwazii sees what seem to be three flying swords under the Pirate's Moon, he embarks on a quest to find the Sword of the Pirate King, which legend says is on a wreck guarded by magical flying swords. The "flying swords" turn out to have been swordfish, which love jumping out of the water, but the pirate sword proves to be real. Meanwhile the others are led on a wild goosechase into a kelp forest following the pirate wreck's drifting figurehead, a carving of a pirate cat, which they mistake for Kwazii.
15	"Octonauts and the Triggerfish"	15 March 2013
The Octonauts' floating temperature sensors alert them to a risk of waterspouts due to a rise in sea surface temperature so they decide to retrieve the devices for safe-keeping. But Kwazii gets into an argument with a possessive triggerfish which has adopted one of the devices as its home, and they both get carried away by a waterspout. Kwazii ends up having to defend the fish from a seabird and a swordfish that want to eat it. Luckily the characteristic grunting sounds that triggerfish make when distressed enables the other Octonauts to locate them.
16	"Octonauts and the Mimic Octopus"	13 May 2013
Peso is gathering red algae to cure the sick vegimals but needs the shapeshifting skills of a mimic octopus to scare off a moray eel by using its striped tentacles to pretend to be a group of poisonous sea snakes.
17	"Octonauts and the Lionfish"	14 May 2013
Invasive lionfish are damaging coral reefs in the Atlantic Ocean and need taking back to their native Pacific Ocean so the Octonauts must use the Octopod to transport them to their native habitat.
18	"Octonauts and the Leafy Sea Dragons"	15 May 2013
When some leafy sea dragons accidentally get into the Octopod, the Octonauts must find them before they end up in Kwazii's stew!
19	"Octonauts and the Manatees"	16 May 2013
After his Gup is struck by lightning, Captain Barnacles gets trapped by a giant clam but doesn't call for help as he wants the others to go help some manatees at risk from a thunderstorm.
20	"Octonauts and the Saltwater Crocodile"	17 May 2013
An enormous Australian saltwater crocodile is lost in the Antarctic Ocean and the Octonauts must bring him home without anyone getting hurt.
21	"Octonauts and the Humphead Parrotfish"	2 September 2013
The Octonauts use magnets and a rock chomping humphead parrotfish to try to stop a large meteor that's heading towards the Octopod.
22	"Octonauts and the Gulper Eels"	3 September 2013
Hungry gulper eels as well as undersea tremors threaten Inkling and Kwazii and get trapped by boulders. So Dashi uses Tweak's newly built "Octo Mach-Suit" to rescue them.

Series 3 (2013-2014)

A third series of 22 episodes started being broadcast by CBeebies on 4 September 2013.^[15]

#	Title	Original air date
1	"Octonauts and the Siphonophore"	4 September 2013
Kwazii and Dashi become entangled in a strange deep-sea creature - a siphonophore - and when a geyser blasts it toward the surface, the Octonauts must stop its ascent before it fatally bursts.
2	"Octonauts and the Water Bears"	5 September 2013
The Octonauts venture into a dangerous red-hot lava tube to rescue a teeny tiny water bear, who doesn't mind the heat at all.
3	"Octonauts and the Cone Snails"	6 September 2013
Only Peso can save the day when a cone snail invades the Octopod and tranquilizes the crew one by one with its dangerous venom-filled harpoons.
4	"Octonauts and the Artificial reef"	9 September 2013
When an underwater hurricane destroys a small reef, which a frogfish and other creatures depend on, Tweak and her crew must convert the recently destroyed Gup-F into an artificial reef before the second stage of the hurricane strikes!
5	"Octonauts and the Humpback Whales"	10 September 2013
When a sardine swallows the key to a treasure chest, a humpback whale helps Kwazii track it down.
6	"Octonauts and the Pelicans"	11 September 2013
When a floating garbage patch endangers a flock of pelicans and other sea creatures, the Octonauts and the birds work together to clean it up.
7	"Octonauts and the Sea Pigs"	12 September 2013
The Octonauts must stop a huge herd of sea pigs before they march blindly into the Mariana Trench - the deepest point on earth!
8	"Octonauts and the Yeti Crab"	13 September 2013
As Tweak tests the Gup-X deep down in the Midnight Zone, a yeti crab cuts a vital electrical wire in the ship and cuts off all power, endangering itself and the Octonauts.
9	"Octonauts and the Barracudas"	10 March 2014
Shellington and the Vegimals are on a mission to replant a mangrove forest that is put in peril by a school of toothy barracudas.
10	"Octonauts and the Duck-Billed Platypus"	11 March 2014
While rescuing river creatures after a storm, the Octonauts find a strange egg and come under attack by stinging platypuses.
11	"Octonauts and the Sea Skaters"	12 March 2014
When Kwazii gets lost at sea aboard the tiny octo-ski, he meets a flotilla of even tinier sea skaters, the only insects of the ocean.
12	"Octonauts and the Mudskippers"	13 March 2014
The Octonauts attempt to keep the peace amongst a trio of mudskippers whose home has been flooded.
13	"Octonauts and the Harbour Seal"	14 March 2014
When Peso's patient, a remora fish, mysteriously disappears, the Octonauts enlist a unique undersea detective - a harbour seal.
14	"Octonauts and the Lion's Mane Jellyfish"	17 March 2014
An enormous lion's mane jellyfish gets its amazingly long tentacles tangled in the Octopod's engine whilst Tweak is working on it and causes havoc.
15	"Octonauts and the Red Rock Crabs"	18 March 2014
Shellington and the others round up some lost crabs and marine iguanas that have got marooned on an island far too cold for them and take them home to the Galapagos Islands.
16	"Octonauts and the Sea Sponge"	19 March 2014
Examining a sick sea sponge, Peso is surprised to discover that all sorts of creatures live inside it, treating it like a hotel, a behaviour known as commensalism.
17	"Octonauts and the Immortal Jellyfish"	20 March 2014
While caring for sea creatures, Peso discovers an adult immortal jellyfish that changes into a baby when it was scared by predators. Captain Barnacles, Kwazii and Peso guard the jellyfish at a distant reef, so Shellington rushes to photograph it, damaging the GUP-E and booster packs in the process.
18	"Octonauts and the Urchin Invasion"	21 March 2014
Kelp-eating red sea urchins attack a kelp forest. The Octonauts are helped by Shellingtons's sister, Pearl, another sea otter and scientist and her newborn son, Periwinkle.
19	"Octonauts and the Hammerhead Sharks"	29 June 2014
When the day turns dark, the Octonauts study a group of baby hammerhead sharks as they hunt.
20	"Octonauts and the Loggerhead Sea Turtle"	8 October 2013
After an undersea tremor separates the Gup-X and its crew, Barnacles seeks guidance from a mysterious sea turtle.
21	"Octonauts and the Queensland Lungfish"	TBA
22	"TBA"	TBA

Series 4 (2015)

A fourth series of 24 episodes started being broadcast by CBeebies on 23 September 2015.

#	Title	Original air date
1	"Octonauts and the Poison Dart Frogs"	23 September 2015
The Octonauts find out about poison dart frogs after a dangerous tidal bore sweeps up the Amazon, depositing all the fish high up in the trees! However, luckily Tweak's new GUP, the GUP-H, is ready to lend a hand.
2	"Octonauts and the Hidden Lake"	24 September 2015
When Barnacles, Kwazii, Peso and Shellington find a mysterious hidden lake underneath Antarctica, Shellington is eager to find some new undiscovered creatures living in the red water. But why is the lake red? And is there actually any creatures living down so deep in the ice?
3	"Octonauts and the Octopod Mystery"	25 September 2015
After the Octopod breaks down, Tweak knows that the only way to get the new part that she needs is to take a trip to the old Octopod. But they may not be alone in their abandoned ship...
4	"Octonauts and the Baby Sea Turtles"	28 September 2015
As newborn baby sea turtles make their way to the ocean, the Octonauts must help them avoid predators when a large wave threatens the island where the precious eggs are buried - not that they'll admit it!
5	"Octonauts and the Walrus Pups"	29 September 2015
Captain Barnacles' nephews Ursa and Orson are going to get their Polar Scout Badges, when they spot three walrus pups on a drifting floe which is on a crash-course with two icebergs. Will Captain Barnacles be able to save them and finally earn the Walrus Rescue Badge - the only one he hasn't got?
6	"Octonauts and the Mantis Shrimp"	30 September 2015
The Octonauts must get two mantis shrimp to stop fighting before their powerful claw strikes destroy the Octopod.
7	"Octonauts and the Loneliest Whale"	1 October 2015
The Octonauts follow a strange song to a lonely humpback whale who is alone because he does not sound like the other whales! They have to help him because if nobody understands him, he won't find the way to the feeding ground.
8	"Octonauts and the Tree Lobsters"	2 October 2015
A storm washes Peso onto a mysterious, rocky island where he meets a band of lobster-like insects thought to be extinct. But he and the Octonauts must catch a baby tree lobster that ended up in the Octopod and bring him back to Balls Pyramid.
9	"Octonauts and the Convict Fish"	14 December 2015
The Octonauts evacuate the creatures living around a reef before a large archway collapses, but one stubborn convict fish refuses to move from her burrow!
10	"Octonauts and the Emperor Penguins"	16 December 2015
The Octonauts journey across a dangerous expanse of ice to help a penguin mother get back to her family..

Special episodes

The specials are double-length episodes which are first broadcast during the Christmas, New Year, or Memorial Day periods before being repeated alongside regular episodes.

#	Title	Original air date
1	"Octonauts and the Great Penguin Race"	13 December 2010
Peso is going home to Antarctica to watch an annual penguin triathlon, the Iron Clam Competition, but learns to his dismay that his little brother Pinto has entered him in it. With the Octonauts cheering him on, Peso will have to slide, dive and swim his way to victory, against the annual athletic winner, Hugo.
2	"Octonauts and the Great Christmas Rescue"	24 December 2011
The Octonauts travel for Christmas to Professor Inkling's childhood home, a seamount, but soon get involved in a rescue mission when a rockslide endangers a rare 500-year-old golden coral and traps Professor Inkling's nephew Squirt! They also learn about Christmas tree worms which live in holes in rocks. Crucial to completing the mission is the new heavy-duty vehicle GUP-X which Tweak has built as an early present for Captain Barnacles.
3	"Octonauts and the Amazon Adventure"	1 January 2013
Kwazii enters a shipwreck to get Calico Jack's map to an underwater city of gold. This leads the octonauts up the Amazon River, past parrots, freshwater stingrays, caiman and manatees. But a falling tree traps the GUP-A, and a tidal bore comes up the river, scattering the octonauts. Captain Barnacles looks for the others with the aid of a river dolphin and its echolocation abilities. The Octonauts help an electric eel, a stranded arapaima, and get chased by piranhas. But a wood-eating panaque frees the trapped GUP-A. Meanwhile Kwazii has been saved by Calico Jack who turns out to be alive, but lost his ship after an attack by fire ants and an anaconda. His incomplete map had led him in circles, but Kwazii's piece completes it so they can finish the quest. After being blocked by hostile capybaras, they are reunited with the others in time to fight off more anacondas. Finally the "city of gold" turns out to be a colony of golden freshwater sponges in the bottom of a pool!
4	"Octonauts and the Mariana Trench Adventure"	27 May 2013
The Octonauts assemble Tweak's new Deep Sea Octolab and lower it to the deepest part of the ocean, the Mariana Trench, where Shellington and Dashi intend to study the sealife. Whilst the Octonauts are setting up the base it is invaded by some giant isopods and other creatures which are looking for a new hydrothermal vent to live around (and accidentlly knocking out the power source in the process). They also observe some sea cucumbers and luminous sea stars, and whilst chasing an out of control Octobot Robots & Vegebot after a power surge cause them to go out of control, Kwazii has to avoid undersea mud volcanoes which have created a lake of hot mud on the seafloor and lava.
5	"Octonauts and a Very Vegimal Christmas"	10 December 2013
When all of the Octonauts are trapped in a dangerous blob of marine mucilage, the Vegimals must step up and build a new GUP called the GUP-V to rescue the crew in time for the Christmas meal.
6	"Octonauts and the Over, Under Adventure"	14 March 2014
The Octonauts' mission to explore Antarctica during which they marvel at sea tulips and hourglass dolphins becomes a desperate rescue as a group of sea stars and urchins are threatened by a brinicle - a rare underwater icicle that can freeze creatures on the sea bed. So the crew use the recently built GUP-S to save the day, with the help of a Weddell seal.
7	"Octonauts and the Great Arctic Adventure"	22 April 2014
While the Octopod is at the base for repairs, the Octonauts (sans Inkling, Tweak, and Tunip) take vacations for themselves. Captain Barnacles and Peso visit his sister Bianca at her den and helps her and her two cubs Orson and Ursa to find the sea ice during the springtime migration and call on the rest of the Octonauts to rescue fellow polar bears from Norway, Canada, Greenland and Russia as their ice floe was melting.
8	"Octonauts and the Operation Deep Freeze"	15 December 2015
Captain Barnacles runs into an old friend - an arctic fox named Professor Natquik - in Antarctica. They must work together with the other Octonauts to prevent a group of penguins from falling into an ice chasm.
9	"Octonauts and the Great Swamp Search"	TBA
Tweak and the Octonauts go to The Everglades to visit her dad, Ranger Marsh and help him rescue some non-native creatures before a storm hits. The team's recently built GUP-K is also there to save the day.

Creature Reports

The Creature Reports are one-minute, musical, poem-like sequences which recap the facts learned about the sea creature that the Octonauts encountered in the associated episode. In the UK these were shown as separately scheduled items but in the American version they were used at the conclusion of each regular episode.

DVDs

The BBC have released three Octonauts DVDs, comprising episodes from the first series along with their associated "Creature Reports". The DVDs are Region 2 format, playable in European DVD players only:

• Here Come the Octonauts (episodes 1–8)
• Octonauts – To The Gups (episodes 9–16 plus 1st special episode)
• Octonauts – Ready for Action (episodes 17–24, 2nd special episode, plus 3 minute video How to Make a Gup X)

A boxed set of all three DVDs was released under the title Octonauts – The Collection in September 2012.^[16]

References

1. interview with executive producer Kurt Mueller BBC Press Office
2. Amazon customer review
3. S4C Octonots page.
4. Amazon customer review
5. Meomi Octonauts website
6. Multiplatform success for ABC For Kids series, Octonauts
7. The Octonauts at the Internet Movie Database (Retrieved 8 April 2013)
8. International Emmy Kids Awards Nominees
9. Irish Film and Television Awards
10. Amazon best-seller list retrieved 7 April 2013
11. Cbeebies broadcast schedules
12. Symbiotic relationships on the Reef
13. CBeebies Grownups - Octonauts
14. Cbeebies Grownups - Comments at BBC website.
15. Lastown TV guide Episode list and transcripts
16. Octonauts - The Collection (DVD) at BBC website

External links

Channels

• Octonauts on CBeebies
• Octonauts on Disney Junior US
• Octonauts on ABC 4 Kids
• Octonauts on Discovery Kids
• Octonauts on Discovery Kids Brazil
• Octonauts on TF1
• Octonauts on TFOU
• Octonauts on Treehouse

Other links

• Official website (by the book's authors: Meomi Design)
• Chorion's Octonauts TV site
• Octonauts on Disney Junior