UFC 109: Relentless (2010)

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.

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.

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

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.

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

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.

A heartfelt documentary focusing on the day-to-day lives of professional wrestlers, some on the rise, some on the wane, and others fighting for their lives.

Forced into a deadly cat-and-mouse game, a disgraced mixed martial arts fighter is hunted through the jungles of Southeast Asia.

Rick, a down-and-out American boxer, is hired to transport a sword to Japan, unaware that the whole thing is a set up in a bitter blood-feud between two brothers, one who follows the traditional path of the samurai and the other a businessman. At the behest of the businessman, Rick undertakes samurai training from the other brother, but joins his cause. He also becomes romantically involved with the samurai's daughter.

A two-bit promoter tries to take a women's wrestling team to the top.