In a world where fighting is the only way to resolve conflicts, legendary fighter Iwan Boyka, an ex-convict seeking redemption, faces his greatest challenge to date. After a battle that left deep physical and emotional scars, Boyka tries to leave behind his life of violence and seek something more than just defeating his opponents. However, his peace is interrupted when he learns that a close friend has been murdered in a risky martial arts tournament in Eastern Europe.
Determined to avenge his death, Boyka infiltrates the violent world of underground boxing. As he navigates this dangerous journey, he encounters a series of lethal adversaries that will test not only his physical skills but also his will to change. Amid brutal fights and manipulation by unscrupulous rivals, Boyka discovers himself between the thirst for blood and the yearning for redemption.
As he trains and hones his abilities, his journey becomes a confrontation not only against his own past but also against the corrupt system that surrounds him. With every punch and every fall, Boyka proves that being a true fighter is not just about strength, but also about heart. Will he be able to prove to himself that there is more at stake than just winning? The final battle approaches, and the path to redemption has never been more complicated.