Frank Nester is a small time criminal who manages to pull off an almost faultless railroad robbery, except for a burnt hand when he grips a stovepipe to steady himself. This injury points to his presence in the mail car and sees him taken into custody. But luck is on his side and the jury finds him not guilty, much to the annoyance of special agent Rodney D. Dodd. So when an almost exact duplication of the robbery occurs two years later for a haul of cash that is nearly forty times greater, Dodd sets his sights on Frank. However, this crime includes a killing. A Mexican jeweller by the name of Don DeLuca, who was travelling in the first class compartment, was hit by a stray shot. Dodd says it's murder and that Frank should hang. Frank knows he had nothing to do with the heist. So who did? And what has happened to the body of Don DeLuca?