Junk Dog lives at the bottom of the underground boxing world, where fights are rigged and victory is decided long before the bell rings. Under the watch of his round, blunt-talking guardian Nambu, he wears his gear, rides his bike, and plays the part of a man who always loses. But behind that routine is a boxer starving for something real. When he is ordered to take another dive against a cocky blond opponent, his frustration boils over. He fights back hard, only to be forced to lose anyway, and that humiliation only deepens his hunger for a true battle.