After barely escaping from an outrageous shootout, ex-cop Charlie Hardie is kidnapped by a team of undercover operatives and forced to guard an underground prison that houses the most dangerous criminals on earth. Or so he's told.

Languishing in self-imposed exile, ex-cop Charlie Hardie has become a glorified house sitter when he finds himself squared off against a small army of the most lethal men in the world: The Accident People.