Si, Elmer and the Sheriff are really working on this case now, and it looks as if the mystery of the midnight train is near a solution. It is just after midnight on a cold, dark night, and the officers are grouped around the secret of the train. They have found a photograph with a record of the train running, hidden in a box on a telegraph pole, and are trying to figure out what has happened to the victims of this trick, after they were lured out on to the track by the sound of a supposed train...