A dangerous tidal wave washes all the fish up in the trees, which is also a big problem for the poison dart frogs who don't have enough puddles up in the trees for the tadpoles. Luckily, Tweak's new Gup-H is ready to help.
Kwazii and Dashi become entangled in a strange deep-sea creature - a siphonophore - and when a geyser blasts it toward the surface, the Octonauts must stop its ascent before it fatally bursts.
When 15-year-old Jennifer Pandos went missing in 1987, her parents told everyone she ran away. Decades later, her brother Stephen begins a relentless odyssey in search of the truth. His investigation into the case threatens to destroy hi…