Joan Weldon

An Endless Terror! A Nameless Horror! ... Kill one and two take its place! Ten years after atomic bomb tests, a little girl wanders alone out of the New Mexico desert.

Gunslinger Mike Ryan (Joel McCrea) is intent on bringing the dangerous outlaw Velvet Clark (Mark Stevens) to justice. However, Ryan is at a disadvantage, since he doesn't know what the masked robber looks like. Ryan begins to work with the area sheriff and falls for the lawman's pretty daughter, Molly Jones (Joan Weldon). With Clark hiding in plain sight as a piano player, the criminal manages to evade Ryan for a while, but eventually the two adversaries come face-to-face.

After the Civil War, a spy for the Confederacy absconds to Arizona to start a new life but gets reluctantly pulled into a stagecoach gold robbery.