Fontaine's amazed when Smiling Finn calls her and tells her he's detected a signal from her Grandparents' missing submarine. Is this a joke-an elaborate scam-or something even more amazing?
Does Dolos really have a lead on finding Ant's grandparents? Or is he leading the Nektons into a dangerous chasm between moving tectonic plates for nefarious purposes?
Ant and Fontaine rescue a Polar Bear from the middle of the ocean. When they bring it on board, they realize she's close to giving birth. Can the Nektons move her to a safer place in time?
The Bajau Laut people are sea nomads living in the South China Sea, and they're hiding a secret. When Ant and Fontaine discover the secret, they're determined to help them. But how do you find a fish that walks?
The Nektons encounter a huge, white whale, but Devil Daniels; Monster Hunter, is trying to capture it. When they discover who the whale really is, the Nektons realise they must save it.
A clever machine Ant created to clean up a vast oceanic rubbish dump, has been eaten by a huge creature. Can the Nektons save Ant's machine, save the creature, and try to save the planet all in one day?
A submarine is trapped in an astonishing location. The Nektons launch an elaborate and dangerous rescue mission to save the people inside. Could it be their missing grandparents?
Mad Madeline steals the dangerous Scepter of Queen Dorius; the Nektons find her, but she loses the scepter; to get it back, Ant must face his fear of sawfish, aka fish with a hedge-trimmer on their face.