

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 survive this, they will have to confront Snakehead: the lethal, deranged top dog who will stop at nothing to kill 'em all!
Stunts
Brahim Achabbakhe and Tim Man doing the heavy lifting
Practical Effects
Gloriously cheap concrete bunker production design
Director
Raimund Huber
Trivia, insights & behind the scenes
This was legendary kickboxer Joe Lewis's final film role before his death in 2012 — he was essentially playing himself as a martial arts master.
Gordon Liu's casting as Snakehead deliberately echoes his Shaw Brothers villain era, but the film can't match his legacy — it's basically borrowing his gravitas for 86 minutes of concrete punching.