Season 4
(2015)
Episodes
Octonauts and the Walrus Pups 0.0
September 29, 2015
Captain Barnacles and his niece and nephew, Ursa and Orson, must rescue walrus pups who are stranded on a runaway ice f…
Octonauts and the Mantis Shrimp 0.0
September 30, 2015
The Octonauts must get 2 mantis shrimp to stop fighting before their powerful claw strikes destroy the Octopod.
Octonauts and the Poison Dart Frogs 0.0
September 23, 2015
When a giant wave hurls Amazon River creatures up into the trees, the Octonauts must get them down safely, without dist…
Octonauts and the Hidden Lake 0.0
September 24, 2015
The Octonauts are exploring Antarctica, when Shellington discovers strange microscopic creatures living under the ice.
Octonauts and the Baby Sea Turtles 0.0
September 28, 2015
As newborn baby sea turtles make their way to the ocean, the Octonauts must steer them clear a giant wave and hungry pr…
Octonauts and the Octopod Mystery 0.0
September 25, 2015
When the Octopod breaks down, Tweak and the crew search for a missing part aboard an abandoned prototype of the ship, n…
Octonauts and the Tree Lobsters 0.0
October 2, 2015
When a storm washes Peso onto a mysterious, rocky island, he meets a band of lobster-like insects thought to be extinct.
Octonauts and the Convict Fish 0.0
December 14, 2015
The Octonauts evacuate the creatures living around a reef before a large archway collapses, but one stubborn convict fi…
Octonauts and the Crawfish 0.0
December 3, 2016
When a population of crawfish is stricken by illness, the Octonauts race to find a cure.
Octonauts and the Surfing Snails 0.0
September 6, 2017
When surfing snails are swept out to sea, it's up to Dashi and the Octonauts to save them.
Octonauts and the Baby Gator 0.0
October 26, 2017
Kwazii adopts a baby alligator naming him Nipper, but when it escapes the Octopod, he and the Octonauts must rescue him.
Octonauts and the Bomber Worms 0.0
October 23, 2017
While diving down to the Midnight Zone, the Octonauts are attacked by bomber worms.
Octonauts and the Flamingos 0.0
December 4, 2016
The Octonauts find a lost flamingo chick separated from his family and they have to return him there before hungry alli…
Octonauts and Operation Cooperation 0.0
September 27, 2017
After Shellington crashes the GUP-D for the 3rd time, he and Kwazii team up with moray eels and grouper fish to help pi…
Octonauts and the Kelp Monster Mystery 0.0
October 24, 2017
Dashi teams up with her little sister Koshi to help the Octonauts solve a mysterious disappearance in the Kelp Forest. …
Octonauts and the Hippos 0.0
September 20, 2017
Trying to return home from a mission along an African river, the Octonauts have trouble getting past a gang of large, m…
Octonauts and the Yellow Bellied Sea Snakes 0.0
September 13, 2017
When Peso gets stranded on a beach with a mass of poisonous snakes after a terrible storm, he and the Octonauts must so…
Octonauts and the Loneliest Whale 0.0
October 1, 2015
The Octonauts follow a strange song to a lonely humpback whale.
Octonauts and the Spinner Dolphins 0.0
October 27, 2017
The Octonauts struggle to save a pod of spinner dolphins who seem to be just swimming in their sleep.
Octonauts and the Coelacanth 0.0
May 29, 2017
While exploring a dark and spooky cave, The Octonauts find a strange fossil of a powerful prehistoric fish... but it ma…
Octonauts and the Emperor Penguins 0.0
December 16, 2015
The Octonauts journey across a dangerous expanse of ice to help a penguin mother get back to her family.
Octonauts and the Tiger Shark 0.0
May 27, 2017
When a hungry tiger shark eats the camera that Tweak's turtle friend Sandy gets in the Octopod, she and the Octonauts m…
Octonauts and the Coconut Crisis 0.0
October 25, 2017
Kwazii takes a vacation on Coconut Island where he gets hit by some coconuts. Then he and the Octonauts must help their…
Octonauts and the Sunfish 0.0
May 28, 2017
When a huge sunfish enters the GUP-E, Peso and Kwazii must somehow get the large fish out of the Gup. Eventually they f…