The Ferocious Brothers

Three middle aged men polish their martial arts skills to avenge their fallen master.

Nick and Ruben are hoodwinked into a "shootfighter" (no-holds-barred, to the death) martial arts match by the evil Mr. Lee, who has a grudge against world shootfighter champ(and teacher of Nick and Ruben) Shingo.

When his daughter is murdered, William Duncan takes the law into his own hands, setting out on a quest for retribution. After killing the street thug responsible for her death, he finds himself in the middle of a war with the thug's brother, father, and their gang, who are equally hell-bent on getting even. What ensues is a tense back-and-forth game of vengeance. By the end, William comes to find that the quest for revenge never has a winner.

After avenging the murder of his family, a former soldier is sprung from prison and recruited by a shadowy government agency.

The eldest son of a ruthlessly tough MMA champion must fight his way out of the abusive cycle his father has continued.

A former fighter reluctantly returns to the life she abandoned in order to help her sister survive the sadistic world of illegal fighting and the maniac who runs it.

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.

After a mission goes wrong, only one of a group of mercenaries is left alive to avenge his fallen brothers.

After being slain by a group of criminals, a man is reborn with animal-like superpowers and makes it his mission to right the wrongs of his city.

After his police officer brother is killed by a drug dealer who flees to the protection of his cartel-connected uncle in Mexico, an American man with a diverse law enforcement/military background goes south of the border to get revenge