The Karate

A businessman, Tsuda, runs into a childhood friend, Kojima, on the subway. Kojima is working as a semiprofessional boxer. Tsuda soon begins to suspect that Kojima might be having an affair with his fiancée Hizuru. After an altercation, Tsuda begins training rigorously himself, leading to an extremely bloody, violent confrontation.

After a blood- soaked jujitsu match in Dubai, fighting legend Mickey Kelley falls to superstar Blaine. But years later, an online video proves that Blaine cheated, and the world demands a rematch. Can the aging underdog get back into shape in time to vanquish his foe, get revenge, and claim his prize?

Picking up after the events of Never Back Down 2, former MMA champion Case Walker is on the comeback trail to become champion once again.

Two feuding brothers of differing political views, one a policeman, the other a martial artist, join forces to avenge the death of their father, a retired agent who was brutally murdered by the mafia.