Synopsis by Hans J. Wollstein
Columbia Pictures elevated stunt man Jock O'Mahoney to stardom in this 15 chapter western serial about the building of the transcontinental railroad. O'Mahoney played a railroad agent who uncovers the master criminal behind a series of sabotage attempts on the construction site. The culprit, a German villain calling himself "The Baron" (George Eldredge), bribes the local Indians into doing his dirty work. Jock O'Mahoney later changed his billing to the more streamlined Jock Mahoney and enjoyed a lengthy career as a star of run-of-the-mill westerns.