Everybody's favorite bad guy from Undisputed II returns. Yuri Boyka (Scott Adkins) is a disgraced, disabled former champion prison fighter, having had his right leg broken by George 'Iceman' Chambers (Michael Jai White) in a Russian prison.
Boyka learns of an international prison tournament (SPC) and enters to regain his honor and prove himself as the 'most complete fighter'.
Adkins once again animates the character with his energetic, acrobatic martial art stunts. But this time the role of the character is just more of a fighter. Boyka (Adkins) has learned a lot in his defeat and humiliation – what it means to be a true champion.
