Les habitants d'une île lointaine appelée "Seal Island" se retrouvent terrorisés par une meute de chiens, étranges vestiges d'animaux abandonnés par des touristes de passage.
Earl Eischied is a man with his hands full. As the Chief of Detectives in New York City he is trying to break up a group of black militants that are on a crime spree including the killing of a police officer. He is also trying to battle with a mayor and police commissioner that want him out of his job.