Seasons & episodes
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.
S1 · E37The Arctic Orcas 2011-01-25 · 11 min
When Captain Barnacles and Peso get lost in the icy Arctic sea, a pod of Orcas help the Octonauts find them.
S1 · E38The Slime Eels 2011-01-26 · 11 min
Kwazii covets the treasure in a sunken pirate ship, but its protected by slime squirting Slime Eels.
S1 · E39The Enormous Elephant Seal 2011-01-27 · 11 min
When Peso and the Octonauts aid an enormous Elephant Seal, he overstays his welcome in the Octopod.
S1 · E40The Sardine School 2011-01-28 · 11 min
The Octonauts must work together as a team to help a lost sardine find her school.
S1 · E41The Dolphin Reef Rescue 2011-01-31 · 11 min
When the Octonauts all pitch in to help save a sick coral reef, they get some unexpected help from a pod of playful dolphins.
S1 · E42The Eel Ordeal 2011-02-01 · 11 min
The Octonauts travel up a treacherous river to help a young migrating eel on her difficult journey.
S1 · E43The Marine Iguanas 2011-02-02 · 11 min
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!
S1 · E44The Dwarf Lantern Shark 2011-02-03 · 11 min
Down in the darkness of the ocean deep, Peso and the Octonauts must help a tiny, injured Dwarf Lantern Shark.
S1 · E45The Pirate Parrotfish 2011-02-04 · 11 min
When the Octonauts go on a pirate treasure hunt, Kwazii meets a Parrotfish.
S1 · E46The Electric Torpedo Rays 2011-02-07 · 11 min
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.
S1 · E47The Crafty Cuttlefish 2011-02-08 · 11 min
Captain Barnacles allows Tunip to use his Octo-compass. But when Tunip loses it, a cuttlefish takes it.
S1 · E48The Lost Lemon Shark 2011-02-09 · 11 min
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.
S1 · E49The Humuhumunukunukuapua'a 2011-02-10 · 11 min
When the Octopod's waterworks are flooded with frightened Humuhumu fish, the Octonauts have to find a way to flush them out.