Troubled, strong-willed skateboarder Sam and her gang of misfit friends sneak over the fence into a secluded scrap yard in an unforgiving desert, with the hopes of finding something she lost. Instead, they find themselves trapped behind inescapable barbed wire walls in a deadly fight for survival against a pack of well-trained, vicious junkyard dogs commanded by Josiah, the mysterious scrap yard proprietor. Once nightfall descends, the survivors who manage to escape the dogs outside find themselves up against an even more sadistic monster when they stumble upon a corrupt county sheriff and the brutal underground dog fighting ring run out of the scrap yard warehouse.