About Boyka Undisputed 4 Boyka (Scott Adkins) accidentally kills an opponent in the ring, forcing him to question everything he's worked for. When he finds out his opponent's widow is in trouble, he becomes her champion in a series of seemingly impossible fights.
Boyka: Undisputed is an upcoming martial arts film and is the sequel to the 2010 boxing film Undisputed III: Redemption. Scott Adkins reprises his role as Yuri Boyka. Tim Man, who choreographed the action for Adkins in Florentine's Ninja: Shadow of a Tear, serves as the film's fight choreographer.