Joanna Dane (Maureen O'Hara) is sent to Tangiers to get information on, and close down, an international smuggling ring. Dane is adept at jujutsu, firearms, and wisecracks that she uses on anyone who tangles with her. Her beauty, attractive outfits and skill with playing cards get her a position as a croupier at a smuggler's hangout called Frisco's, run by the hard blonde Frisco (Binnie Barnes). Joanna also is pursued by smuggler Van Logan (MacDonald Carey), who she uses by having him take her to Ali Baba's, a perfumer run by the suspicious Mustapha (Ferdy Mayne).