A family trip takes a detour into an area closed off from the public, but more importantly from society. An area originally used by the U.S. Government for nuclear testing that was intended to be empty – or so they thought. When the Carters’ car breaks down at the old site, they’re stranded – or are they? The Carters soon realise that what seemed like a car casually breaking down, might actually be a trap, perpetrated by the inhabitants of the site planning a gruesome massacre.