UFC 64: Unstoppable

Four fighters from different backgrounds come together to train under an ex MMA rising star and then ultimately have to fight each other and the traitor in their midst.

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.

If your enemy refuses to be humbled... Destroy him. Accompanied by his brother Kurt, American kickboxing champion Eric Sloane, arrives in Thailand to defeat the Eastern warriors at their own sport. His opponent: ruthless fighter and Thai champion, Tong Po. Tong not only defeats Eric, he paralyzes him for life. Crazed with anger, Kurt vows revenge.

A former fighter reluctantly returns to the life she abandoned in order to help her sister survive the sadistic world of illegal fighting and the maniac who runs it.

When a woman's father goes missing, she enlists a local to aid in her search. The pair soon discover that her father has died at the hands of a wealthy sportsman who hunts homeless men as a form of recreation.