Ex-convict David Harvey attempts to go straight and settles in a small town where he meets and falls in love with Mary Carlyle. His former gang tries to persuade him to take part in a robbery of a wealthy woman but he refuses until discovering that Mary is in league with the gang.
Margaret Holt and her brother Victor set out to smash a narcotics ring responsible for their father's death. Young reporter John Howell and eccentric mystery writer Winthrop Clavering help unravel the truth about the murder.
A hillbilly deacon, who is actually a cardsharp in disguise, becomes involved in a small-town fight game.
Michael Lanyard, aka the Lone Wolf, is sailing to America when he meets pretty Eve de Montalais. Eve wants to sneak her valuable necklace through U.S. customs so that she can use the money from its sale to help straighten out her brother. The only problem is that there is a gang of jewel thieves on board who are just as determined to steal the necklace.