An unusually hectic and hilarious honeymoon centres on a Hollywood starlet, Wynne, who, while on location in Sicily and in defiance of her contract, is secretly married to Navy flyer Bill Kelley who is on manoeuvers in the Mediterranean. The actress, with the aid of her sister and stand-in, Elsey, and two of the lieutenant's pals, Dinky and Spud disguises herself as a sailor and stows away on his ship, the U.S.S. Alamo. When the ship sails for Morocco, Wynne and Kelley find themselves in the midst of a spy ring. Lucia, Kelley's old Moroccan flame and now the mistress of the leader of the spy ring, still harbours a grudge against the flyer for marrying someone other than herself. As revenge, she has him implicated in the espionage case. In the end he is absolved and winds up a hero, with the comic help of the two sisters and Dinky and Spud.