Boyka: Undisputed IV tell story about "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.".
Cast : Scott Adkins, Teodora Duhovnikova, Alon Aboutboul, Julian Vergov, Martyn Ford, Brahim Achabbakhe, Paul Chahidi, Petio Petkov, Valentin Ganev, Vlado Mihailov, Vladimir Kolev, Hristo Petkov, Boris Pankin, Bashar Rahal, Emilien De Falco, Tim Man, Andreas Nguyen, Hristo Padev, Yavor Baharov, Plamen Velikov, Slavi Slavov, Ivan Kostadinov, Atanas Madzharov, Atanaska Popova, Georgi Petkov, Mihaela Semova, Trayan Milenov-Troy, Vencislav Stojanov, Velizar Peev, Tsvetolyub Iliev, Ilian Emanviov, Danko Jordanov, Ivan Iliev, Genko Ivanov, Stefan Shopov, Dimiter Doichinov, Venelin Mishev, Anina Youroukova
- Runtime : 87 minutes (1' 27")
- Genre : Action
- Production : Nu Boyana Viburno
- Release : April 18, 2017
- Countries : Bulgaria
- Languages : English