Danger Lights is a 1930 movie starring Louis Wolheim, Robert Armstrong, and Jean Arthur. The plot concerns railroading on the Chicago, Milwaukee, St. Paul and Pacific Railroad, and the movie was largely filmed along that railroad's lines in Montana. The railway yard in Miles City, Montana was a primary setting, while rural scenes were shot along the railway line through Sixteen Mile Canyon, Montana. Additional footage was shot in Chicago, Illinois. Louis Wolheim plays the boss of the railroad yard in Miles City, Montana. The film opens with a landslide across the tracks in Montana, and a repair crew is dispatched to clear the tracks. Several hobos are lounging nearby and are put to work helping the repair crew. One of the hobos, played by Robert Armstrong, is discovered to have been a former railroad engineer who lost his job due to insubordination. He is given a new job for the railroad in Miles City by the yard boss, but quickly falls in love with the boss's fiancée, played by...This information was automatically generated from Freebase article Danger Lights. You should replace/update it...