Join the Octonauts in this fourth collection of exciting underwater adventures adapted from the popular children’s television series! The Octonauts are a team of quirky and courageous undersea adventurers who are always ready to dive into action. The Octonauts mission is to explore new underwater worlds, rescue amazing sea creatures and protect our oceans.

1. The Oarfish
2. Creature Report: Oarfish
3. The Combtooth Blenny
4. Creature Report: Combtooth Blenny
5. The Jellyfish Bloom
6. Creature Report: Jellyfish
7. The Baby Dolphin
8. Creature Report: Dolphins
9. The Scary Spookfish
10. Creature Report: Spookfish
11. The Arctic Orcas
12. Creature Report: Orcas
13. The Slime Eels
14. Creature Report: Slime Eels
15. The Enormous Elephant Seal
16. Creature Report: Elephant Seal
17. The Sardine School
18. Creature Report: Sardines
19. The Dolphin Reef Rescue
20. Creature Report: Dolphins