The Octopod is grabbed by a colossal squid. The Octonauts are unable to break free due to the hooks on the ends of the squid's tentacles. Fortunately the arrival of some sperm whales turns the squid from hunter to hunted.
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.
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.
The twins Eden and Léandro were born severely premature. Once out of the belly of their mother, Laurence, they find themselves propelled into the hostile and worrying world of the hospital, full of the sounds of machines and of doctors …
The story revolves around the clash between Ayyappan, a senior police officer who serves at the Attappadi Police Station and Havildar Koshi, who comes to the village with a motive.
