An amphibious shark-like monster terrorizes an abandoned secret military base and the people who live on the island it is located on. A marine biologist, as well as several other people, try to stop it before it is too late…

When teen-socialite Kelly Van Ryan (Richards) and troubled bad girl Suzie Toller (Campbell) accuse guidance counselor Sam Lombardo (Dillon) of rape, he’s suspended by the school, rejected by the town, and fighting to get his life back. One cop (Bacon) suspects conspiracy, but nothing is what it seems…