Seasons & episodes
S1 · E13The Lost Sea Star 2010-10-20 · 11 min
When the Octonauts find an unusual Sea Star on the beach, they search the ocean from top to bottom (literally) to help find its home.
S1 · E14The Albino Humpback Whale 2010-10-21 · 11 min
The Octonauts help out an Albino Humpback Whale with a nasty sunburn.
S1 · E15The Giant Kelp Forest 2010-10-22 · 11 min
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.
S1 · E16The Enemy Anemones 2010-10-25 · 11 min
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 horde of out of control puddings are attacking. Peso wins the contest between 2 types of blobs.
S1 · E17The Narwhal 2010-10-26 · 11 min
While exploring the Arctic, the Octopod gets trapped in the ice. Only Barnacles's skillful navigation, and the help of a friendly Narwhal, can get them free.
S1 · E18The Midnight Zone 2010-10-27 · 11 min
While exploring the deepest part of the ocean, the Midnight Zone, the Octonauts discover a strange rock that happens to be home to a new species of worm.
S1 · E19The Snapping Shrimp 2010-10-28 · 11 min
The Octonauts encounter a snapping shrimp – a small creature that uses its claws to make a big, and stunning, noise.
S1 · E20The Snot Sea Cucumber 2010-10-29 · 11 min
After an underwater tremor, an injured sea cucumber named Slippy gets loose on the Octopod, so to let her breathe, they flood the ship!
S1 · E21The Giant Whirlpool 2010-11-01 · 11 min
The Octonauts race against time to rescue Tweak's pal, a leatherback sea turtle who's caught in a fast-moving ocean current that's sucking it into a whirlpool.
S1 · E22The Hermit Crabs 2010-11-02 · 11 min
When Captain Barnacles Bear 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.
S1 · E23The Mixed-Up Whales 2010-11-03 · 11 min
When the Octonauts clean and repair their ship, the Octopod, the resulting noise causes a nearby blue whale to act in strange and dangerous ways.
S1 · E24The Kelp Forest Rescue 2010-11-04 · 11 min
When Peso's little brother, Pinto, comes to visit, he's more interested in being a pirate than a medic – at least until he accompanies Peso on a mission to rescue Dashi and Shellington in a kelp forest.
S1 · E25The Decorator Crab 2010-11-05 · 11 min
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.
S1 · E26The Beluga Whales 2010-12-06 · 11 min
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.
S1 · E27The Hungry Pilot Fish 2010-12-07 · 11 min
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.
S1 · E28The Vampire Squid 2010-12-08 · 11 min
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.
S1 · E29The Seahorse Tale 2010-12-09 · 11 min
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!
S1 · E30The Giant Jelly 2010-12-10 · 11 min
The Octonauts must rescue Peso when he gets trapped inside a giant ctenophore.
S1 · E31The Cookiecutter Sharks 2010-12-13 · 11 min
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.
S1 · E32The Oarfish 2010-12-14 · 11 min
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.
S1 · E33The Combtooth Blenny 2010-12-15 · 11 min
When Kwazii and Peso are shipwrecked on a desert island, they encounter a Combtooth Blenny - a fish who walks on land! They enlist him to send an SOS message to the other Octonauts.
S1 · E34The Jellyfish Bloom 2010-12-16 · 11 min
When Shellington gets trapped in the middle of a massive Jellyfish bloom, it's up to the Octonauts to rescue him.
S1 · E35The Baby Dolphin 2010-12-17 · 11 min
When a young dolphin follows Kwazii home, he has to babysit while the other Octonauts search for its mother.
S1 · E36The Scary Spookfish 2011-01-24 · 11 min
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.