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 ...

where he is forced to right for his life against Adkins’ formidable psychopathic gang leader, Yuri Boyka. Directed by Isaac ...

In the fourth installment of the fighting franchise, Boyka is shooting for the big leagues when an accidental death in the ring makes him question everything he stands for.