A notorious Mexican bandit goes all soft and mushy when he falls for a beautiful senorita. Warner Bros.' Captain Thunder contains some of the darndest Mexican accents you've ever heard in your life. The star is Hungarian-born Victor Varconi, portraying a legendary south of the border outlaw who tries to force Canadian senorita Fay Wray to marry a rival rustler whom she despises. She pleads with the bandito so pathetically that he is moved to grant her a single wish. Without hesitation she chooses her poor but true love. The bandit king, being a somewhat honorable fellow grants the wish and without a twitch, guns down the wicked cattle thief. Fortunately the film was played for comedy, a wise decision since it probably would have garnered laughs as a straight drama anyway.

In order to support her sister and her sister's small child, Mary Tracy leads a double life: by day, she works as a schoolteacher; nights, she dances in a cabaret show. Mary becomes interested in Bill Adams, whose mother is prominent in an anti-vice crusade, and therefore attempts to quit her job in the cabaret. Al Morton, the club's owner, holds her to her contract, however, and Mary is caught up in a police raid on the cabaret. The club is shut down, and Mary is fired from her teaching post. Morton threatens to expose Bill (who is running a crime syndicate with money embezzled from his father's bank), and Bill sets out to take Morton for a ride. Finally realizing that she has fallen in love with Morton, Mary calls the cops and saves him from certain death. Bill is arrested, and Mary and Morton decide to get married.