Season
Season 10 Episode
- Season 4 Octonauts and the Poison Dart Frogs
- Season 4 Octonauts and the Hidden Lake
- Season 4 Octonauts and the Octopod Mystery
- Season 4 Octonauts and the Baby Sea Turtles
- Season 4 Octonauts and the Walrus Pups
- Season 4 Octonauts and the Mantis Shrimp
- Season 4 Octonauts and the Loneliest Whale
- Season 4 Octonauts and the Tree Lobsters
- Season 4 Octonauts and the Convict Fish
- Season 4 Octonauts and the Emperor Penguins
- Season 4 Octonauts and the Crawfish
- Season 4 Octonauts and the Flamingos
- Season 4 Octonauts and the Tiger Shark
- Season 4 Octonauts and the Sunfish
- Season 4 Octonauts and the Coelacanth
- Season 4 Octonauts and the Surfing Snails
- Season 4 Octonauts and the Yellow Bellied Sea Snakes
- Season 4 Octonauts and the Hippos
- Season 4 Octonauts and Operation Cooperation
- Season 4 Octonauts and the Bomber Worms
- Season 4 Octonauts and the Kelp Monster Mystery
- Season 4 Octonauts and the Coconut Crisis
- Season 4 Octonauts and the Baby Gator
- Season 4 Octonauts and the Spinner Dolphins
Octonauts - Season 4 Episode 21 Octonauts and the Kelp Monster Mystery
7.10 15 minutes Dashi teams up with her little sister Koshi to help the Octonauts solve a mysterious disappearance in the Kelp Forest. This is the second episode in which is unknown who sounded the Octo-Alert.
