After freezing up under pressure in the emergency room, Dr. Cahill decides to spend a few months unwinding on a little Maine island where he immediately gets off on the wrong foot with the locals. Meanwhile, a body has washed up on shore infested with a strange type of carnivorous cockroach. But when Dr. Cahill tries to warn the townsfolk of the danger, they are naturally skeptical. Will they realize the truth before it's too late?

Anthology series of composed of distinct story episodes, sometimes with a plot twist at the end, with occasional recurring story elements that were often tied together during season-finale clip shows.