Knuckles

Two brothers live in the economically-depressed Rust Belt, when a cruel twist of fate lands one in prison. His brother is then lured into one of the most violent crime rings in the Northeast.

In the depression, Chaney, a strong silent streetfighter, joins with Speed, a promoter of no-holds-barred street boxing bouts. They go to New Orleans where Speed borrows money to set up fights for Chaney, but Speed gambles away any winnings.

Ghang-gheng, the ancient winner-take-all competition in which the deadliest fighters from around the world employ the most spectacular feats of martial arts skills ever displayed in order to win the prized Golden Dragon. But fighting prowess alone will not be enough for Chris to triumph over such daunting foes.

Jake, full of anger after his father's death, is just starting to find a place for himself at his new Orlando high school - until Ryan, head of an underground MMA fight club, picks Jake out as a prime opponent. After being trounced by Ryan in front of the entire school, Jake begins training under the firm, moral guidance of a MMA master, where he learns how to fight... and how to avoid a fight. But it becomes obvious that a rematch will be inevitable if Jake wants to stop Ryan and his bullying, once and for all.

A former youth boxing champion, Jimmy McCabe is a man in search of hope but looking in all the wrong places. When he hits rock bottom he turns to his childhood boxing club and the only family he has left: gym owner Bill corner man Eddie and promoter Joe. Back in training, years after anyone thought he was a contender, he risks his life, as he tries to stand tall and regain his place in the world.

Four fighters from different backgrounds come together to train under an ex MMA rising star and then ultimately have to fight each other and the traitor in their midst.

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.

The youngest son of an alcoholic former boxer returns home, where he's trained by his father for competition in a mixed martial arts tournament – a path that puts the fighter on a collision course with his estranged, older brother.

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

In Los Angeles, an ex-con takes the underground fighting world by storm in his quest to fulfill a promise to a dead friend.

Retired martial arts world champion Alex Faulkner has settled into a simple life, when the disappearance of two of his students leads to an unthinkable discovery close to home. Just when all hope of finding the children is lost, he locates the imprisoned girls and unsurfaces an international child trafficking operation, which draws him back into the fight of his life against those behind it.

An ex-con battles it out in the cage to pay for the operation that would save the daughter of his victim. Along the way he finds fatherly love, and friendship, in the most unlikely of places.