Around 1850, a young violin virtuoso steals a Stradivarius from the museum of a southern German royal residence in order to play for a famous master. By chance, he is able to demonstrate his skills to the sovereign at a court concert.
When Bigshot Jones gives his unnamed dog to the All-For-One Club, Buckwheat quickly names the canine "Smallpox", inadvertently causing a city-wide panic.
Jimmy O'Brien (Robert Lowery)and Sammy Rubin (Sidney Miller), write jingle commercials for radio, and meet Mary Adams (Dona Drake), who wants to break into radio as a soloist for a band.
Before his death, Mansour Pasha writes over his wealth to his two sons Omar and Othman; as the latter drowns, his wife gets a boy and claims he is Othman's son to ensure her share in the inheritance.