UFC 211: Miocic vs. dos Santos 2

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.

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.

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

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 Texas Ranger is recruited by British Intelligence to track down a dangerous terrorist and stop him from attacking London.