The 2016 film Undisputed, directed by Isaac Florentine, is a noteworthy addition to the martial arts and action genre. As the fourth installment in the Undisputed series, it represents a significant departure from its predecessors, focusing on mixed martial arts (MMA) rather than traditional boxing. The film stars Scott Adkins as the central protagonist, Boyka, who has become a fan-favorite character due to Adkins’ impressive martial arts skills and charismatic performance. Undisputed (also known as Undisputed IV: Boyka in some markets) blends intense action with a compelling narrative of redemption and personal growth.

Undisputed follows Yuri Boyka (Scott Adkins), a former prison fighter who, after the events of the previous films, is now a free man. Despite his newfound freedom, Boyka is haunted by his past and seeks to find redemption and purpose. The film opens with Boyka participating in underground MMA fights, showcasing his skill and determination but also his inner turmoil.