Three US sailors aboard a decoy ship fight German U-boats in World War I and try to win Sally who works on the Coney Island midway.

William Boyd
as Baltimore

Robert Armstrong
as Dutch

James Gleason
as Skeets

Ginger Rogers
as Sally

Harry Bannister
as Commander

Frank Reicher
as Holtzmann

Ben Alexander
as Kid

Henry Victor
as Captain Von Schlettow

Hans Joby
as Schwartz

Yola d'Avril
as French Girl (uncredited)