ROAR OF THE IRON HORSE (1951). A colorized compilation of a 15-chapter serial

In ROAR OF THE IRON HORSE, a railroad agent named Jim Grant opposes Karl Ulrich, called The Baron. Head of a sabotage strong, the infamous Baron is thwarted time and time again as he tries to stop the building of a southern spur of a transcontinental railroad with all the means to his scope, strategically bribing the local Indians into doing his dirty work.