Starring: Alain Moussi, Christopher Lambert and Jean-Claude Van Damme
One year after the events of Kickboxer: Vengeance, Kurt Sloan has vowed never to return to Thailand. However, while gearing up for an MMA title shot, he finds himself sedated and forced back into Thailand, this time in prison.
He is there because the ones responsible want him to face a 6’8″ 400lbs beast named Mongkut and in return for the fight Kurt will get $2mn and his freedom back. At first Kurt refuses, so a bounty is placed on his head as a way to force him into facing Mongkut.
Kurt soon learns he has no choice but to undergo his most rigorous training yet under some unexpected mentors in order to face Mongkut in the hope of regaining his freedom.