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
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.
2. Octonauts: Series 4, Octonauts and the Hidden Lake
In Antarctica, Shellington discovers strange microscopic creatures living under the ice.
3. Octonauts: Series 4, Octonauts and the Octopod Mystery
When the Octopod breaks down, the crew must search for a missing part.
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.
5. Octonauts: Series 4, Octonauts and the Walrus Pups
Captain Barnacles must rescue walrus pups who are stranded on a runaway ice floe.
6. Octonauts: Series 4, Octonauts and the Mantis Shrimp
The Octonauts must get two mantis shrimp to stop fighting.
7. Octonauts: Series 4, Octonauts and the Loneliest Whale
The Octonauts follow a strange song to a lonely humpback whale.
8. Octonauts: Series 4, Octonauts and the Tree Lobsters
Peso meets a band of lobster-like insects thought to be extinct.
9. Octonauts: Series 4, Octonauts and the Convict Fish
The Octonauts evacuate the creatures around a reef, but one convict fish refuses to move.
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.
11. Octonauts: Series 4, Octonauts and the Crawfish
When a mysterious illness affects all the crawfish, the Octonauts race to find a cure.
12. Octonauts: Series 4, Octonauts and the Flamingos
The Octonauts wade through a swamp to find a lost flamingo chick before predators do.
13. Octonauts: Series 4, Octonauts and the Tiger Shark
Tweak must help her friend Sandy the sea turtle escape a hungry tiger shark.
14. Octonauts: Series 4, Octonauts and the Sunfish
The Octonauts must help a giant sunfish who can't swim straight, before it hurts itself.
15. Octonauts: Series 4, Octonauts and the Coelacanth
While exploring a cave, the Octonauts discover the fossil of a powerful, prehistoric fish.
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.
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.
18. Octonauts: Series 4, Octonauts and the Hippos
Returning home from Africa, the Octonauts encounter a gang of large, territorial hippos.
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.
20. Octonauts: Series 4, Octonauts and the Bomber Worms
While diving down to the Midnight Zone, the Octonauts are attacked by bomber worms.
21. Octonauts: Series 4, Octonauts and the Kelp Monster Mystery
Dashi and her little sister Koshi solve a mysterious disappearance in a kelp forest.
22. Octonauts: Series 4, Octonauts and the Coconut Crisis
Kwazii and the Octonauts help the coconut crabs discover who is stealing their coconuts.
23. Octonauts: Series 4, Octonauts and the Baby Alligator Search
Kwazii adopts a baby alligator, but it escapes from the Octopod.
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.