After a calculating young rival (George Chesebro) with designs on both his job and his pretty daughter (Jean Arthur) gets him busted down to flagman, a veteran railroad engineer (Ralph Lewis) sees his chance for redemption in the development of a revolutionary safety device that can stop a runaway train. Can his discovery prevent an imminent tragedy? Hugh Allen, Sidney Franklin co-star. 59 min. Standard; Soundtrack: music score. Plays All Regions. Silent with music score.