Rumble revolves around an aging and injured former MMA champ who is forced back into a deadly Mexican underground fight circuit to save is girlfriend kidnapped by a mysterious cartel leader and criminal mastermind.

An aging former MMA champ is forced into a deadly Mexican underground fight circuit to save his kidnapped girlfriend. Hunted down by rival mobs and a Mexican detective, he must beat the circuit ringleader at his own game to save the girl and escape.—Anonymous