Online gaming takes on new meaning in a futuristic world where players at home can direct convicts to do their bidding in a wickedly violent, multiplayer competition -- and death-row inmate Kable (Gerard Butler) has no choice but to play. As millions satisfy their sadistic fantasies via prisoner avatars, Kable must find a way to escape and expose the hidden agenda of the reclusive fat cat who dreamed up the game (Michael C. Hall).