Brawl in Cell Block 99

While on a prison furlough, a lowly criminal evades his guards and returns to his old stomping ground to take revenge on the people who turned him into a cold blooded killer.

A man must survive a prison where hardened criminals battle to the death for the warden's entertainment.

Mason Storm, a 'go it alone' cop, is gunned down at home. The intruders kill his wife, and think they've killed both Mason and his son too. Mason is secretly taken to a hospital where he spends several years in a coma. His son meanwhile is growing up thinking his father is dead. When Mason wakes up, everyone is in danger - himself, his son, his best friend, his nurse - but most of all those who arranged for his death

Russian inmate Boyka, now severely hobbled by the knee injury suffered at the end of Undisputed 2. No longer the feared prison fighter he was, he has declined so far that he is now good only for cleaning toilets. But when a new prison fight tournament begins - an international affair, matching the best fighters from prisons around the globe, enticing them with the promise of freedom for the winner - Boyka must reclaim his dignity and fight for his position in the tournament.

A highway patrol officer, two criminals, and a station secretary form an unlikely alliance to defend a defunct Los Angeles precinct against a siege by a bloodthirsty street gang.