When an mixed martial arts champion is thrown into a twisted world of underground fighting to save his wife's life, he takes desperate measures and violently fights to the death against many of his fellow MMA champions. They too, controlled by the underground cage, are fighting against their will to save the lives of their loved ones. While onlookers place online bets, one champion will rise to the top and uncover the identity of the mastermind behind the corrupt tournament. The ultimate showdown will prove that there can only be one true Death Warrior.