Jack Warren takes over as the engineer on “The Phantom Limited” express train after all the other engineers on the line turned it down, after John Lane, the line’s veteran engineer, had run through a switch left opened by sabotage. The company officials tell Jack that if he can run the train for two weeks without an accident, he can have the Limited as his own. Even though Nora Lane, Jack’s sweetheart and John’s daughter, tells him she will never marry a railroad man, Jack still takes the assignment. “Daddles,” Nora’s kid brother, is injured in an accident and Nora puts the electric car on the track to take him to a doctor. Hardy, a rejected suitor and the man behind the line’s troubles, sees her and throws the switch that will send the Limited, with Jack in the cab, crashing into the electric car.