A fighter with a heart of gold finds himself drawn into an Internet-streaming underground martial arts tournament.

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.

An amateur fighter is lured by a trafficking syndicate specializing in elite underground fighting where her brutal captor forces her to fight or face certain death.

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 drifting ex-soldier turns underground fighter with the help of a just-released ex-con, pitting him against corrupt cops and hired killers now gunning for him and all those he cares about.

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.

A young Asian American martial artist is forced to participate in a brutal formal street-fight competition.

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

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.

Raised as a slave, Danny is used to fighting for his survival. In fact, his "master," Bart, thinks of him as a pet and goes as far as leashing him with a collar so they can make money in fight clubs, where Danny is the main contender. When Bart's crew is in a car accident, Danny escapes and meets a blind, kindhearted piano tuner who takes him in and uses music to free the fighter's long-buried heart.

An underground MMA fighter must confront his sister and his past in an adventure through parallel universes

After the vicious slaughter of his family by stone-cold mercenary Sub-Zero, Hanzo Hasashi is exiled to the torturous Netherrealm. There, in exchange for his servitude to the sinister Quan Chi, he’s given a chance to avenge his family – and is resurrected as Scorpion, a lost soul bent on revenge. Back on Earthrealm, Lord Raiden gathers a team of elite warriors – Shaolin monk Liu Kang, Special Forces officer Sonya Blade, and action star Johnny Cage – an unlikely band of heroes with one chance to save humanity. To do this, they must defeat Shang Tsung's horde of Outworld gladiators and reign over the Mortal Kombat tournament.

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.

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?

An American Army Major goes AWOL to Hong Kong for an outlawed martial arts contest called the Kumite.

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

MMA legend Patton James, now a commercial fisherman, is pulled back into the cage when his brother is in danger. Reuniting with his old coach Sammy, he commits to one final fight in one championship against the brutal champion Xavier Grau.

When Karate champion Michael Rivers wins the last tournament of his career, shady businessman Ron Hall offers him the opportunity to fight in an illegal Kumite in Bulgaria against the world’s best martial artists. When Michael declines, Hall has his daughter kidnapped and, in order to rescue her, Rivers is left with no choice but to compete in the deadly tournament. Arriving in Bulgaria, he finds out that he is not the only fighter whose loved one was taken. Rivers enlists the help of trainers Master Loren, and Julie Jackson but will it be enough for him to win the tournament and save his daughter’s life?

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.

Russian inmate Boyka, now severely hobbled by the knee injury suffered at the end of Undisputed 2. No longer the feared prison fighter he was, he has declined so far that he is now good only for cleaning toilets. But when a new prison fight tournament begins - an international affair, matching the best fighters from prisons around the globe, enticing them with the promise of freedom for the winner - Boyka must reclaim his dignity and fight for his position in the tournament.

When Ryu returns to pay homage to his deceased mentor, Gouken, he is tormented by disturbing memories of his master's killer (Gouki). In a quest to become a true martial arts master, he sets out to hone his street fighting skills and deliver himself from the haunting legacy of the dark hadou.