E1 - The Colossal Squid

Aired: November 19, 2012

The Octopod is attacked by a colossal squid, who drags the ship down an abyssal trench, forcing Barnacles and Kwazii to make a perilous swim outside to confront the gigantic beast.

E2 - The Adelie Penguins

Aired: November 20, 2012

While Kwazii and Peso have their hands full babysitting a bunch of Adelie penguin chicks, Captain Barnacles must rescue the chicks' parents from a perilous sea storm!

E3 - The Coconut Crabs

Aired: November 21, 2012

Kwazii finds a mysterious, unbreakable coconut, so the Octonauts seek out the help of some large, island-dwelling coconut crabs to open it.

E4 - The Great White Shark

Aired: November 22, 2012

Peso must perform an emergency fin bandage on a hungry great white shark, but first they need to subdue the giant predator using a trick called 'tonic immobility'.

E5 - The Sea Snakes

Aired: November 23, 2012

It's Sea Snakes on an Octopod when a poisonous sea krait lays her eggs in the garden pod, just as Captain Barnacles has to navigate the ship past a treacherous whirlpool.

E6 - The Bowhead Whales

Aired: November 26, 2012

When the Octonauts are unable to rescue a group of Narwhals trapped behind arctic ice, they recruit a Bowhead Whale to help them break through!

E7 - The Jawfish

Aired: November 27, 2012

A mouth-brooding jawfish father has lost his eggs, and the Octonauts must brave strong currents and other obstacles to help get them back to him!

E8 - The Porcupine Puffer

Aired: November 28, 2012

Barnacles, Kwazii and Peso venture back inside a whale shark to retrieve a Porcupine Puffer Fish that was accidentally swallowed.

E9 - The Damselfish

Aired: November 29, 2012

The Octonauts help a group of algae-eating fish stand up to some aggressive damselfish, who are harming their own reef by over-farming it with algae.

E10 - The Scared Sperm Whale

Aired: November 30, 2012

A timid sperm whale must help the Octonauts release Peso from a giant clam.

E11 - The Long Armed Squid

Aired: March 11, 2013

Peso and Kwazii venture down to the midnight zone to help a hurt creature, but what they find is a shipwreck 'haunted' by a spooky-looking long-armed squid.

E12 - The Fiddler Crabs

Aired: March 12, 2013

The Octonauts help clean up a beach after a storm, but things get complicated when the resident fiddler crabs hijack the Gup-D!

E13 - The Manta Rays

Aired: March 13, 2013

The Octonauts help a young manta ray find the secret manta ray feeding grounds, but when they finally locate it, the Octonauts become caught in the middle of a dangerous feeding frenzy!

E14 - The Swashbuckling Swordfish

Aired: March 14, 2013

The octonauts discover a rare showing of a full moon as Kwazii discovers that its known as the Pirate Moon as Kwazii and The Octonauts search for a ship that belonged to the pirate king as Kwazii searches for the sword of the Pirate King until a trio of swordfish prevent Kwazii from getting closer to the wrecked ship.

E15 - The Triggerfish

Aired: March 15, 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.

E16 - The Mimic Octopus

Aired: May 13, 2013

The Octonauts recruit a shape-shifting mimic octopus to help them recover an important vial of medicinal algae from a moray eel's lair.

E17 - The Lionfish

Aired: May 14, 2013

The Octonauts get more than they bargained for when they use the Octopod to transport a pair of invasive lionfish back to their native habitat.

E18 - The Leafy Sea Dragons

Aired: May 15, 2012

When two young leafy sea dragons are accidentally separated from their father and brought onboard the Octopod, the Octonauts must find them before they end up in Kwazii's stew!

E19 - The Manatees

Aired: May 16, 2013

Running out of air, Barnacles struggles to free his paw from the mouth of a giant clam, while simultaneously directing his crew in a delicate manatee rescue operation.

E20 - The Saltwater Crocodile

Aired: May 17, 2013

When a gigantic saltwater crocodile wanders into freezing waters, the Octonauts must figure out how to get the predator back to his warm water home - without anyone getting hurt.

E21 - The Humphead Parrotfish

Aired: September 02, 2013

The Octonauts use magnets to try to stop a meteor that's heading toward the Octopod and get an assist from a rock-chomping humphead parrotfish and her friends.

E22 - The Gulper Eels

Aired: September 03, 2013

When hungry gulper eels as well as undersea tremors threaten Inkling and Kwazii, Dashi uses the new, multi-purpose Octo Max Suit to rescue them.