Bok-soon runs a street stall, cares for her younger sister, and is feared by many because of her quick temper. When Tae-soo murders her sister, rage consumes her completely as she stalks the killer.
While on a prison furlough, a lowly criminal evades his guards and returns to his old stomping ground to take revenge on the people who turned him into a cold blooded killer.
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
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.
Two brothers compete in the world's deadliest underground fighting tournament, where they must decide whether to play by the rules or to cast their honor aside and team up to bring down the dark syndicate running the tournament.