The Danish school teacher Mogens Jensen is on his holiday through Sweden in a rickety T-Ford.

Ole Olsen and Chic Johnson are Broadway stars who return to Universal Studios to make another movie. The mere mention of Olsen and Johnson's names evacuates the studio and terrorizes the management and personnel. Undaunted, the comedians hire an assistant director and unknown talent, and set out to make their own movie.

Circumstances arise that result in a man impersonating his uncle. As the "uncle", he finds himself pursued by his girlfriend's aunt, who does not approve of their relationship.

Soundie of the Delta Rhythm Boys' version of the eponymous classic song, accompanied by some dancing beauties.