A UFO expert, a local sheriff, and an FBI agent are forced to team up with an alien warrior to track down and destroy a lethal extraterrestrial robot killing people in a remote forest in Alabama.

Slim Williams, a small-time dealer, is poised to make his big score with his partner Paulie. But the easy deal becomes a nightmare when Slim is caught in deadly police sting and ends up in a maximum-security penitentiary. Sold out by his partner, Slim is forced to learn the rules of survival behind bars - forget what you know. Inside these walls, there are no laws.