Joan Mao

After a failed assassination attempt, a soldier finds himself stranded in the desert. Exposed to the elements, he must survive the dangers of the desert and battle the psychological and physical toll of the treacherous conditions.

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.