In the years before World War I, a love affair takes place between an American pilot named Jack Ames and a French spy named Madeleine Aubert. Madeleine leaves her American fiancé to join her father, another French spy, at an estate in Germany. Her father instructs her to accept the invitation of a Prussian officer, Eric von Coburg, to live at his estate for a month.

Winnie Lightner is the head of a health clinic and has Joe E. Brown as one of her employees. Brown is a wrestler named JoJo and he is forced to enter the ring and face down a musclebound masked opponent (Frank S. Hagney). Making matters worse, the masked marauder is convinced that his wife has been fooling around with JoJo. JoJo is knocked out early in the proceedings, whereupon he dreams he's a sultan surrounded by harem girls. A romantic subplot involves Paul Gregory and Claudia Dell. Gregory works for Dell's father and Dell asks her father to give Gregory a promotion so that she can spend more time with him. When Gregory refuses to be promoted without earning the position, she threatens to have him fired and Gregory quits his job. Gregory attempts to start a new career as a championship wrestler and is trained by Lightner and Brown. When Dell finds out about this, she attempts to stop him and asks for his forgiveness. She pleads with him to not fight but he has already promised...

A pair of hapless half-wits get into continuous mischief during the occupation of Germany after WW I.

Based on the farcical stage play written by Pulitzer Prize-winning* writer Elmer Rice, Oh, Sailor Behave! is a movie Musical with a split personality. Nanette Dodge (Irene Delroy) falls for newspaper reporter Charlie Carroll (Charles King) who is on assignment in Venice to land an interview with Romanian General Skulany (Noah Beery). Our couple is split apart by a pair of storylines - Nanette tries to woo a Russian prince (Lowell Sherman) who is blackmailing her sister, while Charlie, following a lead to the general, finds himself Romantically involved with Kunegundi (Vivien Oakland), "the general's favorite."

Mr. and Mrs. Warner Bros. Pictures and their precocious offspring, Little Miss Vitaphone, host a dinner in honor of Warner Bros. Silver Jubilee, attended by most of the major players and song writers under contract to WB at that time.