- Alon Aboutboul, Bashar Rahal, Boris Pankin, Brahim Achabbakhe, Emilien De Falco, Hristo Petkov, Julian Vergov, Martyn Ford, Paul Chahidi, Petio Petkov, Scott Adkins, Teodora Duhovnikova, Valentin Ganev, Vladimir Kolev, Vlado Mihailov
- Todor Chapkanov
- Action, Crime, Drama, Sport, Thriller
- July 27, 2017
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. When he finds out the wife of the man he accidentally killed is in trouble, Boyka offers to fight in a series of impossible battles to free her from a life of servitude.