Bloodsport: The Dark Kumite (1999)

Agent John Keller is an honoured policeman and a champion in combat. Involved in the middle of a murder of two of his colleagues, he receives the death penalty. Imprisoned, he is involved in violent fights organised by the warden and his guards, where he employs martial arts. He is also pushed into a tournament to the death set up by the eccentric Justin Caesar. This action and martial arts film, the fourth in the Bloodsport saga, will attract you even more if you are a fan of the genre.