 Moe is all washed up in the world of Boxing promotions until he discovers that Curly s rage causes him to knock people out cold everytime he hears Larry play "Pop Goes the Weasel" on the violin. Moe takes he and Larry on the road and pretty soon Curly is in the Heavyweight Championship but Larry breaks his violin and has to find a means to get music to fuel the savage beast (oddly enough he never thinks to simply whistle the tune).