
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.
Genres:

Scott Adkins as Yuri Boyka

Mykel Shannon Jenkins as Turbo

Mark Ivanir as Gaga

Hristo Shopov as Warden Kuss

Marko Zaror as Raul 'Dolor' Quinones

Michael Baral as Casino Manager

Ilram Choi as The Asian Fighter

Robert Costanzo as Farnatti

Lateef Crowder as Santiago Silva

Esteban Cueto as Sykov

Vernon Dobtcheff as Rezo

Valentin Ganev as Warden Markov

Velislav Pavlov as Chief Guard

Kiril Efremov as Guard 1

Trayan Milenov-Troy as French fighter (uncredited)

Dimiter Doichinov as Fighter (uncredited)

Velizar Peev as Prison Guard #2 (uncredited)

Borislav Iliev as Prison Guard #1 (uncredited)
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