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.
Boyka: Undisputed IV (2016)
Tagline:Boyka is back!
Cast:Aleksandar Belovski, Alon Aboutboul, Andy Long Nguyen, Anina Youroukova, Atanas Madzharov, Atanaska Popova, Bashar Rahal, Boris Pankin, Brahim Achabbakhe, Danko Jordanov, Dimiter Doichinov, Emilien De Falco, Genko Ivanov, Georgi Petkov, Hristo Padev, Hristo Petkov, Ilian Emanviov, Ivan Iliev, Ivan Kostadinov, Julian Vergov, Martyn Ford, Mihaela Semova, Paul Chahidi, Petio Petkov, Plamen Velikov, Scott Adkins, Slavi Slavov, Stefan Shopov, Teodora Duhovnikova, Tim Man, Trayan Milenov-Troy, Tsvetolyub Iliev, Valentin Ganev, Velizar Peev, Vencislav Stojanov, Venelin Mishev, Vladimir Kolev, Vlado Mihailov, Yavor Baharov