On the fifth season of the hit reality series The Ultimate Fighter, 16 of mixed martial arts' top lightweight up and comers will fight tooth and nail for the opportunity to change their lives forever by earning a UFC contract. But the stakes may be even higher for the two coaches, lightweight legends Jens Pulver and BJ Penn, who have their own bitter score to settle - one that can only be decides by a rematch in the world-famous Octagon.