Captured international assassins are locked up inside a high-tech bunker known as the Killing Chamber. To break out of this concrete hell they must duel each other, fight deadly ninjas and battle against gangs of masked maniacs. And... if they … Johnny Messner, Joe Lewis, Gordon Liu Chia-hui, Ammara Siripong, Brahim Achabbakhe, Tim Man, Rashid Phoenix Added on Amazon Prime 2023-07-25.