Tsunami

A large underwater hotel, on the seabed of Kolokai Island, is the target of attacks by a dangerous species of mutant fish-men, but Dan Rooper, the owner, can count on the help of two exceptional friends, as trustworthy as they are combative: Legs and May! Why is it that, despite Rooper having had the waters reclaimed, the incursions continue incessantly? Our agents' suspicions soon take a certain direction, but, to complicate the course of the investigations, a frightening anomalous wave announces itself!