A railway signal man on a mountain invites a new signal man to stay in his house, but he has designs on the man's wife which comes to a head as they have to deal with a runaway train. This is a mix of train action and Wallace Beery being smarmy towards the married Virginia Valli whilst ignoring the advances of Dot Farley. This is not a great film but is entertaining for a film of the period with some good shots around the railway, agood performance from Virginia Valli resisting the advances of Wallace Beery.