Episode 1
Aired Oct 4, 2010
The Whale Shark
When Dashi is accidentally swallowed by a Whale Shark, the Octonauts venture inside the huge fish to rescue her.
Details
Episode 2
Aired Oct 5, 2010
The Undersea Storm
When Kwazii's Gup-B breaks down in a storm, a chain of reef lobsters lends a hand and some claws to help Captain Barnacles save him.
Details
Episode 3
Aired Oct 6, 2010
Captain Barnacles and Kwazii investigate a disruption on a nearby reef - a carrier crab and the urchin who lives on its shell who just can't seem to get along.
Details
Episode 4
Aired Oct 7, 2010
When Peso's precious medical kit is taken, Barnacles and Kwazii sneak into a dangerous walrus colony disguised as a walrus to get it back.
Details
Episode 5
Aired Oct 8, 2010
The Flying Fish
A team of heroes dives into action whenever there is trouble under the sea.
Details
Episode 6
Aired Oct 11, 2010
The Giant Squid
The Octonauts are in search of a giant squid.
Details
Episode 7
Aired Oct 12, 2010
The Orcas
When a huge Orca whale becomes stranded on a beach, Captain Barnacles and the Octonauts devise a plan to pull him back into the water, with some help from a group of tunneling Fiddler Crabs.
Details
Episode 8
Aired Oct 13, 2010
The Great Algae Escape
Captain Barnacles and crew must catch a runaway Octopod, when it is hijacked by a group of crustaceans trying to escape their algae-infested waters.false.
Details
Episode 9
Aired Oct 14, 2010
When Shellington gets lost in a dark sea cave, he gets unexpected assistance from some blind Remipedes.
Details
Episode 10
Aired Oct 15, 2010
The Speedy Sailfish
Captain Barnacles and his intrepid band of explorers roam the oceans in search of adventure and fun. When all the Gups go out of control, Barnacles and Kwazii leap onto the backs of some speedy sailfish to round them up.
Details
Episode 11
Aired Oct 18, 2010
The Blobfish Brothers
A team of heroes dives into action whenever there is trouble under the sea.
Details
Episode 12
Aired Oct 19, 2010
The Monster Map
Octonauts follow an old map to what Kwazii believes is treasure guarded by a sea monster, but instead they meet a playful Octopus with all kinds of surprising abilities.
Details
Episode 13
Aired Oct 20, 2010
The Lost Sea Star
When the Octonauts find an unusual Sea Star on the beach, they search the ocean from top to bottom to help find its home.
Details
Episode 14
Aired Oct 21, 2010
Captain Barnacles and his band of explorers roam the oceans in search of adventure and fun; the Octonauts help out an Albino Humpback Whale with a nasty sunburn.
Details
Episode 15
Aired Oct 22, 2010
The Giant Kelp Forest
When Kwazii's favorite sub, the Gup B, goes missing, the Octonauts journey into a mysterious kelp forest to find it, meeting strange and interesting creatures along the way.
Details
Episode 16
Aired Oct 25, 2010
The Enemy Anemones
The Octonauts and some helpless crabs are caught between two territorial groups of aggregating anemones whose numbers are growing.
Details
Episode 17
Aired Oct 26, 2010
The Narwhal
The Octopod gets trapped in ice while exploring the Arctic; the Octonauts have to rely on Barnacles' skilful navigation and the help of a friendly narwhal to free the ship.
Details
Episode 18
Aired Oct 27, 2010
The Octonauts explore the Midnight Zone, the deepest part of the ocean; they discover a strange rock that happens to be home to a new species of worm.
Details
Episode 19
Aired Oct 28, 2010
The Snapping Shrimp
The Octonauts encounter a snapping shrimp, a small creature that uses its claws to make a big noise.
Details
Episode 20
Aired Oct 29, 2010
The Snot Sea Cucumber
A slimy, slippery snot sea cucumber gets loose on the Octopod; Captain Barnacles decides the only way to save its life is to flood the ship.
Details
Episode 21
Aired Dec 9, 2010
The Seahorse Tale; The Enemy Anemones
The Octonauts reunite seahorses; some helpless crabs are caught between two territorial groups.
Details
Episode 21
Aired Nov 1, 2010
The Giant Whirlpool
A team of heroes dives into action whenever there is trouble under the sea.
Details
Episode 22
Aired Nov 2, 2010
When Captain Barnacles and most of the crew are unable to return to base, it's up to Peso and Tweak to remove a stuck hermit crab from its shell.
Details
Episode 23
Aired Nov 3, 2010
The Mixed Up Whales
A team of heroes dives into action whenever there is trouble under the sea.
Details
Episode 24
Aired Nov 4, 2010
The Kelp Forest Rescue
A team of heroes dives into action whenever there is trouble under the sea.
Details
Episode 25
Aired Nov 5, 2010
The Decorator Crab
When important objects go missing from their ship, the Octonauts stake out the thief who turns out to be a decorator crab, stealing their things to decorate his shell.
Details
Episode 26
Aired Nov 6, 2010
The Beluga Whales
When the Octonauts discover a pod of Beluga Whales stranded at a breathing hole, they use music to lead them to safety.
Details
Episode 27
Aired Dec 7, 2010
The Hungry Pilot Fish
A lost Pilot Fish who eats ocean gunk cleans up the Octonauts' dirty Gups;.Captain Barnacles must figure out why a Whitetip Shark is chasing the Gup-A.
Details
Episode 28
Aired Dec 8, 2010
The Vampire Squid
Peso must gather all his courage when he travels deep down to the very bottom of the ocean, the Midnight Zone, and encounters the mysterious Vampire Squid.
Details
Episode 29
Aired Dec 9, 2010
The Seahorse Tale
Captain Barnacles and his intrepid band of explorers roam the oceans in search of adventure and fun; after a storm, the Octonauts have to reunite a seahorse with its missing mate, who is about to give birth to baby seahorses.
Details
Episode 30
Aired Dec 10, 2010
The Giant Jelly
The Octonauts must rescue Peso when he gets trapped inside a giant Comb Jelly.
Details
Episode 31
Aired Dec 13, 2010
The Cookiecutter Sharks
Something is making strange holes in the Octonauts' equipment; it turns out to be a trio of pesky cookiecutter sharks, the mosquitos of the sea.
Details
Episode 32
Aired Dec 14, 2010
The Oarfish
Dashi snaps a picture of what appears to be a sea serpent, but the truth is stranger than fiction when it turns out to be an awesomely long oarfish.
Details
Episode 33
Aired Dec 15, 2010
The Combtooth Blenny
When Kwazii and Peso are shipwrecked on a desert island, they encounter a combtooth blenny, a fish that walks on land; they enlist the fish to send an SOS message to the others.
Details
Episode 34
Aired Dec 16, 2010
The Jellyfish Bloom
When Shellington gets trapped in the middle of a massive jellyfish bloom, it's up to the Octonauts to rescue him.
Details
Episode 35
Aired Dec 17, 2010
The Baby Dolphin
Capt. Barnacles and his intrepid band of explorers roam the oceans in search of adventure and fun. When a young dolphin follows Kwazii home, he has to baby-sit while the other Octonauts search for its mother.
Details
Episode 36
Aired Jan 24, 2011
The Scary Spookfish
The Octonauts try to pull Peso out of an oceanic trench and get some help from a strange looking creature with a see-through head: A spookfish.
Details
Episode 37
Aired Jan 25, 2011
The Arctic Orcas
Captain Barnacles and his intrepid band of explorers roam the oceans in search of adventure and fun; when Captain Barnacles and Peso get lost in the icy Arctic sea, a pod of Orcas helps the Octonauts find them.
Details
Episode 38
Aired Jan 26, 2011
The Slime Eels
Kwazii covets the treasure in a sunken pirate ship, but it's protected by slime squirting slime eels.
Details
Episode 39
Aired Jan 27, 2011
The Enormous Elephant Seal
Captain Barnacles and his intrepid band of explorers roam the oceans in search of adventure and fun; when Peso and the Octonauts aid an enormous elephant seal, he overstays his welcome in the Octopod.
Details
Episode 40
Aired Jan 28, 2011
The Sardine School
Animated deep sea adventure series, as Captain Barnacles and his intrepid band of explorers roam the oceans in search of adventure and fun; the Octonauts must work together as a team to help a lost sardine find her school.
Details
Episode 41
Aired Jan 31, 2011
The Dolphin Reef Rescue
A team of heroes dives into action whenever there is trouble under the sea.
Details
Episode 42
Aired Feb 1, 2011
The Eel Ordeal
A team of heroes dives into action whenever there is trouble under the sea.
Details
Episode 43
Aired Feb 2, 2011
The Marine Iguanas
The Octonauts teach a few fun facts about the marine iguana in this installation of the Creature Reports.
Details
Episode 44
Aired Feb 3, 2011
The Dwarf Lanternshark
Captain Barnacles and his intrepid band of explorers roam the oceans in search of adventure and fun. 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.
Details
Episode 45
Aired Feb 4, 2011
The Pirate Parrotfish
Captain Barnacles and his intrepid band of explorers roam the oceans in search of adventure and fun. When the Octonauts go on a pirate treasure hunt, along the way Kwazii meets the perfect sidekick, a Parrotfish.
Details
Episode 46
Aired Feb 7, 2011
The Electric Torpedo Ray
Captain Barnacles and his intrepid band of explorers roam the oceans in search of adventure and fun; when the Octopod loses all power, the Octonauts give it a jump-start with the aid of some electric torpedo rays.
Details
Episode 47
Aired Feb 8, 2011
Crafty Cuttlefish
The Octonauts are on a mission to recover Captain Barnacle's lost Octo compass.
Details
Episode 48
Aired Feb 9, 2011
The Lost Lemon Shark
The Octonauts have their hands full as they look after a headstrong young lemon shark who's hurt his nose and can't find his way home.
Details
Episode 49
Aired Feb 10, 2011
The Humuhumunukunukuapua'a
When the Octopod's waterworks are flooded with frightened humuhumu fish, the Octonauts have to find a way to flush them out.
Details
Episode 50
Aired Feb 11, 2011
The Giant Spider Crab
Kwazii is spooked when he spots what looks like a giant underwater spider; it turns out to be a very old spider crab who needs the Octonauts' help.
Details
Episode 51
Aired Dec 1, 2011
The Great Penguin Race
The Octonauts cheer Peso on as he goes home to compete against an awesomely athletic penguin.
Details
Episode 52
Aired Dec 1, 2011
The Great Christmas Rescue
The Octonauts travel to Professor Inkling's childhood home for Christmas, but they discover a rock slide has endangered all the creatures.
Details