UFC 58: USA vs Canada was a mixed martial arts event held by the Ultimate Fighting Championship on March 4, 2006.Five of the seven Canadian fighters featured, Icho Larenas, Sam Stout, Mark Hominick, Georges St. Pierre, and David Loiseau, were at the time champions in the Canadian TKO Major League MMA promotion. Each fight featured an American fighter against a Canadian fighter.

A documentary about men who engage in extreme combat to channel the rage within them. One of them, the singer Dan Bigras, became a filmmaker to tell us about his friends. For them, the ring acts as a metaphor for an internal battle.