Seconds into the first round, reigning champion Killer Kilduff (Al Hill) knocks Curly out of the ring and onto Larry, breaking his violin. Larry frantically rushes through the streets in search of anything that will play "Weasel" as Kilduff mercilessly pummels Curly. He finds a radio broadcasting the tune and hurries back to the arena with it. The music revitalizes Curly, but it ends just as he is about to land a knockout punch and the fight turns in Kilduff's favor again. An infuriated Moe smashes the radio over Larry's head and sends him out to find something else they can use. Larry commandeers a politician's campaign truck that is playing the tune, drives back to the arena, and crashes in through a side wall. Curly revives again and easily knocks Kilduff out to win the championship, then accidentally knocks out Moe and Larry as the music keeps playing.