As a huge storm heads towards the headquarters, the Octonaut crew hurriedly goes into preparation. However, Kwaji, wh...

The Octonauts roam the oceans in search of adventure and fun. Whether it's a perilous voyage to the bottom of the sea...

Captain Barnacles and his crew must catch a runaway Octopod, when it is hijacked by a group of crustaceans trying to ...

When Peso's precious medical kit is taken, Barnacles and Kwazii sneak into a dangerous walrus colony to get it back, ...

When a school of flying fish accidentally make off with a rare book belonging to Professor Inkling, the Octonauts rig...

While exploring the Arctic, the Octopod gets trapped in the ice. Only Barnacles's skillful navigation, and the help o...

The Octonauts follow an old map to what Kwazii believes is treasure guarded by a sea monster but, instead, they meet ...

The crew pursues crustaceans who’ve hijacked the Octopod.

The Octonauts help out an Albino Humpback Whale with a nasty sunburn.

When Shellington gets lost in a dark sea cave, he gets unexpected assistance from some blind Remipedes.

When a huge Orca whale becomes stranded on a beach, Captain Barnacles Bear and the Octonauts devise a plan to pull hi...

The Octonauts must evacuate sea creatures before an underwater volcano erupts, but there's one creature that won't bu...

When important objects go missing from their ship, the Octonauts stake out the thief, who turns out to be a decorator...

When Kwazii's Gup-B breaks down in a storm, not even brave Captain Barnacles can save him alone. Fortunately, a chain...

Some mysterious holes that keep appearing in the Octonauts' equipment turn out to be the work of cookiecutter sharks ...

When Shellington gets trapped in the middle of a massive Jellyfish bloom, it's up to the Octonauts to rescue him.

When all the Gups go out of control, Barnacles and Kwazii leap onto the backs of some speedy Sailfish to round them up.

Peso must gather all his courage when he travels deep down to the very bottom of the ocean, the Midnight Zone, and en...

When the Octopod's waterworks are flooded with frightened Humuhumu fish, the Octonauts have to find a way to flush th...

The octonauts help a 100 year old spider crab which has got its leg trapped in a giant clam whilst en route to its ow...

When Kwazii's favorite sub, the Gup B, goes missing, the Octonauts journey into a mysterious kelp forest to find it, ...

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 ...

The Octonauts are chased by a whitetip shark only to discover all it really needed was a pilot fish to clean its teet...

The Octonauts lead a pod of Beluga Whales stuck under the pack ice to safety by getting them to follow Peso while he'...

After an underwater tremor, an injured sea cucumber named Slippy gets loose on the Octopod, so to let her breathe, th...

The Octonauts race against time to rescue Tweak's pal, a leatherback sea turtle who's caught in a fast-moving ocean c...

Kwazii covets the treasure in a sunken pirate ship, but its protected by slime squirting Slime Eels.

When Captain Barnacles and Peso get lost in the icy Arctic sea, a pod of Orcas help the Octonauts find them.

When the Octonauts find an unusual Sea Star on the beach, they search the ocean from top to bottom (literally) to hel...

The Octonauts must rescue Peso when he gets trapped inside a giant ctenophore.

The Octonauts encounter a snapping shrimp – a small creature that uses its claws to make a big, and stunning, noise.

When Peso's little brother, Pinto, comes to visit, he's more interested in being a pirate than a medic – at least unt...

When Peso and the Octonauts aid an enormous Elephant Seal, he overstays his welcome in the Octopod.

The Octonauts must work together as a team to help a lost sardine find her school.

The Octonauts travel up a treacherous river to help a young migrating eel on her difficult journey.

When the Octonauts all pitch in to help save a sick coral reef, they get some unexpected help from a pod of playful d...

When the Octonauts go on a pirate treasure hunt, Kwazii meets a Parrotfish.

Some electric torpedo rays give the Octopod a jump-start when its batteries go flat during a trip to see Tweak's pal,...

While exploring the deepest part of the ocean, the Midnight Zone, the Octonauts discover a strange rock that happens ...

When the Octonauts clean and repair their ship, the Octopod, the resulting noise causes a nearby blue whale to act in...

After a storm, the Octonauts help a female seahorse search for her missing mate. She tells them, to Kwazii's surprise...

The Octonauts land on an island for a picnic but must first help some crabs trapped between two warring groups of agg...

Captain Barnacles allows Tunip to use his Octo-compass. But when Tunip loses it, a cuttlefish takes it.

The Octonauts have their hands full as they look after a headstrong young Lemon Shark who's hurt his nose and can't f...

When a young dolphin follows Kwazii home, he has to babysit while the other Octonauts search for its mother.

The Octonauts try to pull Peso out of an oceanic trench and get some help from a strange looking creature with a see ...

Dashi snaps a picture of what appears to be a sea serpent, but the truth is stranger than fiction when it turns out t...

When Kwazii and Peso are shipwrecked on a desert island, they encounter a Combtooth Blenny - a fish who walks on land...

The team are preparing for a feast of red seaweed on the Galapagos Islands but a trio of salt-sneezing marine iguanas...

Down in the darkness of the ocean deep, Peso and the Octonauts must help a tiny, injured Dwarf Lantern Shark.