Season 4 episodes

￼1: Octonauts and the Poison Dart Frogs

2: Octonauts and the Hidden Lake

3: Octonauts and the Octopod Mystery

4: Octonauts and the Baby Sea Turtles

5: Octonauts and the Walrus Pups

6: Octonauts and the Mantis Shrimp

7: Octonauts and the Tree Lobsters

8: Octonauts and the Convict Fish

Special: Octonauts and the Operation Deep Freeze

9: Octonauts and the Crawfish

￼Special: Octonauts and the Great Swamp Search

10: Octonauts and the Baby Gator

11: Octonauts and the Surfing Snails

￼12: Octonauts and the Kelp Monster Mystery

13: Octonauts and the Coelacanth

14: Octonauts and the Spinner Dolphins

15: Octonauts and the Operation Cooperation

￼16: Octonauts and the Flamingos

17: Octonauts and the Hippos

18: Octonauts and the Tiger Shark

19: Octonauts and the Loneliest Whale

20: Octonauts and the Yellow Bellied Sea Snakes

21: Octonauts and the Bomber Worms

22: Octonauts and the Coconut Crisis

23: Octonauts and the Emperor Penguins

24: Octonauts and the Sunfish