Boyka: Undisputed IV (2016) runs 1 h 27 min, is rated R in the US and averages 7.2 from 1,522 TMDB members. 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.
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Streaming availability by JustWatch. In the US, as of 2026-11-05: Amazon Prime Video (subscription), fuboTV (subscription), Amazon Prime Video with Ads (subscription), Shout! Factory Amazon Channel (subscription), Fandango at Home Free (free with ads), Shout! Factory TV (free with ads), Plex (free with ads).
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