SN 4 | EP 9 | Kelp Monster Mystery / Hippos
Kelp Forest Mystery: Dashi teams up with her little sister, Koshi, to solve a mysterious disappearance in a kelp forest. Hippos: Returning home from a mission along an African river, the Octonauts have trouble getting past a gang of large, territorial hippos.
Available: Google Play, YouTube
Animated, Children, Adventure, Fantasy