Series 4


Series 4

Animated deep sea adventure series. Captain Barnacles and his intrepid band of explorers roam the oceans in search of adventure and fun


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Episodes List

Octonauts and the Poison Dart Frogs

1. Octonauts: Series 4, Octonauts and the Poison Dart Frogs

The Octonauts must avoid the poison dart frogs who live in trees above the Amazon river.

Octonauts and the Hidden Lake

2. Octonauts: Series 4, Octonauts and the Hidden Lake

In Antarctica, Shellington discovers strange microscopic creatures living under the ice.

Octonauts and the Octopod Mystery

3. Octonauts: Series 4, Octonauts and the Octopod Mystery

When the Octopod breaks down, the crew must search for a missing part.

Octonauts and the Baby Sea Turtles

4. Octonauts: Series 4, Octonauts and the Baby Sea Turtles

As newborn baby sea turtles make their way to the ocean, the Octonauts must help them.

Octonauts and the Walrus Pups

5. Octonauts: Series 4, Octonauts and the Walrus Pups

Captain Barnacles must rescue walrus pups who are stranded on a runaway ice floe.

Octonauts and the Mantis Shrimp

6. Octonauts: Series 4, Octonauts and the Mantis Shrimp

The Octonauts must get two mantis shrimp to stop fighting.

Octonauts and the Loneliest Whale

7. Octonauts: Series 4, Octonauts and the Loneliest Whale

The Octonauts follow a strange song to a lonely humpback whale.

Octonauts and the Tree Lobsters

8. Octonauts: Series 4, Octonauts and the Tree Lobsters

Peso meets a band of lobster-like insects thought to be extinct.

Octonauts and the Convict Fish

9. Octonauts: Series 4, Octonauts and the Convict Fish

The Octonauts evacuate the creatures around a reef, but one convict fish refuses to move.

Octonauts and the Emperor Penguins

10. Octonauts: Series 4, Octonauts and the Emperor Penguins

The Octonauts journey across an expanse of ice to help a get a mother back to her family.

Octonauts and the Crawfish

11. Octonauts: Series 4, Octonauts and the Crawfish

When a mysterious illness affects all the crawfish, the Octonauts race to find a cure.

Octonauts and the Flamingos

12. Octonauts: Series 4, Octonauts and the Flamingos

The Octonauts wade through a swamp to find a lost flamingo chick before predators do.

Octonauts and the Tiger Shark

13. Octonauts: Series 4, Octonauts and the Tiger Shark

Tweak must help her friend Sandy the sea turtle escape a hungry tiger shark.

Octonauts and the Sunfish

14. Octonauts: Series 4, Octonauts and the Sunfish

The Octonauts must help a giant sunfish who can't swim straight, before it hurts itself.

Octonauts and the Coelacanth

15. Octonauts: Series 4, Octonauts and the Coelacanth

While exploring a cave, the Octonauts discover the fossil of a powerful, prehistoric fish.

Octonauts and the Surfing Snail

16. Octonauts: Series 4, Octonauts and the Surfing Snail

When surfing snails are swept out to sea by a huge wave, it's up to Dashi to save them.

Octonauts and the Yellow Belly Sea Snakes

17. Octonauts: Series 4, Octonauts and the Yellow Belly Sea Snakes

When poisonous sea snakes get stranded on a beach, Peso must get them back into the ocean.

Octonauts and the Hippos

18. Octonauts: Series 4, Octonauts and the Hippos

Returning home from Africa, the Octonauts encounter a gang of large, territorial hippos.

Octonauts and Operation Cooperation

19. Octonauts: Series 4, Octonauts and Operation Cooperation

Shellington and Kwazii team up with a moray eel and grouper fish after the Gup-D crashes.

Octonauts and the Bomber Worms

20. Octonauts: Series 4, Octonauts and the Bomber Worms

While diving down to the Midnight Zone, the Octonauts are attacked by bomber worms.

Octonauts and the Kelp Monster Mystery

21. Octonauts: Series 4, Octonauts and the Kelp Monster Mystery

Dashi and her little sister Koshi solve a mysterious disappearance in a kelp forest.

Octonauts and the Coconut Crisis

22. Octonauts: Series 4, Octonauts and the Coconut Crisis

Kwazii and the Octonauts help the coconut crabs discover who is stealing their coconuts.

Octonauts and the Baby Alligator Search

23. Octonauts: Series 4, Octonauts and the Baby Alligator Search

Kwazii adopts a baby alligator, but it escapes from the Octopod.

Octonauts and the Spinner Dolphins

24. Octonauts: Series 4, Octonauts and the Spinner Dolphins

The Octonauts try to save some spinner dolphins who seem to be swimming in their sleep.