Tired of working the traveling sideshow circuit in Africa, con men Chuck Reardon (Bing Crosby) and Hubert Fearless Frazier (Bob Hope) get tangled up with tycoon Charles Kimble (Eric Blore), who fleeces them with the deed to a worthless diamond mine. After swindling someone else with the same mine deed, the boys rescue a pair of seemingly innocent young cuties in peril, Donna (Dorothy Lamour) and Julia (Una Merkel), not realizing that the girls are confidence tricksters themselves.