Plot

While in Chicago with their high school choir, Richie, Ralph and Potsie sneak by their chaperons, wind up on the wrong side of an unsympathetic downtown nightclub owner, and win the sympathy of a kind-hearted cocktail waitress.

Richie's choir has a tv spot in Chicago. The boys sneak out to a nightclub but lose their money and have to keep one step ahead of their choirmaster.