Two teenagers prowl a devastated landscape, polluted by radioactive waste in search for food. On their quest of survival, they meet Socrates, a man who takes them to an island that seems a far cry away from the urban misery they struggled in. But the two youngsters ignore that the island is ruled by a beautiful but ruthless queen whose slaves are the hideous fishmen.

When a group of people are shipwrecked on a remote island, they stumble upon a secret laboratory where a mad scientist is conducting medical experiments on aquatic humanoids. As they try to survive and escape, they uncover the dark secrets of the island and its inhabitants.