A narcotics agent convinces a convict he helped send to Alcatraz to go undercover with him and help expose a heroin smuggling ring. The unlikely pair travels from San Francisco to Vancouver, and finally to a dude ranch in Tucson run by mob bosses. They end up receiving unexpected assistance from the gang leader's ditzy blonde girlfriend (Shelley Winters), who falls for the narcotics agent during the sting. Cast: - Howard Duff as George Morton aka Mike Doyle - Shelley Winters as Terry Stewart - Dan Duryea as Johnny Evans - Tony Curtis as Joey Hyatt - John McIntire as Nick Avery - Gar Moore as Sam Harrison - Leif Erickson as Pringle - Barry Kelley as William McCandles - Hugh Reilly as Charlie - Wally Maher as T.H. Benson Runtime: 76 minutes