The series is set in a nightmarish town in the United States that traps those who enter. The unwilling residents strive to stay alive while plagued by terrifying nocturnal creatures from the surrounding forest as they search for secrets hidden within the town and beyond in the hope of finding a way out.

The series centers around Boyd Stevens (Perrineau), the self-appointed sheriff and de-facto mayor, and the Matthews family, new arrivals to the town who soon discover that they are trapped along