After barely walking away with his life from a shootout that will go down in Hollywood history, ex-cop Charlie Hardie discovers things can, in fact, get even worse. He is kidnapped by a team of team of undercover operatives and forced to stand guard over an underground prison that houses the most dangerous criminals on earth. Or so he's told. As Hardie goes deeper, and finds himself behind bars, he begins to wonder: who is running the asylum and are the good guys the ones behind bars or the ones walking the halls?