Let-It-Rain Riley (MacLean) is a devil-may-care Marine sergeant who falls in love with a girl (Shirley Mason) who he assumes to be rich. His rival for the girl's affection is his pal, Kelly (Wade Boteler). The guys find out that the object of their affections is but a modest switchboard operator but she proves to be invaluable when she deciphers a code and discovers that a mail train is about to be robbed.
Douglas MacLean
as 'Let-It-Rain' Riley
Shirley Mason
as The Girl
Wade Boteler
as Kelly (a gob)
Frank Campeau
as Marine Major
James Bradbury Jr.
as Butch
Lincoln Stedman
as Bugs
Lee Shumway
as Marine Captain
James Pier Mason
as Crook (as James Mason)
Eddie Sturgis
as Crook (as Edwin Sturgis)
Ernest Hilliard
as Crook
Boris Karloff
as Crook