From Dramatists Play Service:

The villianous Simon Darkway seeks to control the Walker Valley, Pine Bush & Pacific R.R. for his own vile purposes. Assisting him are Dirk Sneath, a viper of a man, and Carlotta Cortez, the sultry siren with a heart of gold. Fortunately, the gallant Truman Pendennis, the beauteous Prudence Hopewell, the Widow Hopewell, and staunch Harold Standfast oppose the sinister schemes of this wicked trio. Swiftly and hilariously, the classic melodramatic plot unfolds, leading to a tremendous climax when the hero is inescapably bound by the villains to the tracks of an onrushing train. Thankfully, it is our heroine who arrives just in the nick of time to stop the train and save the day. And now, with virtue at last triumphant, the evildoers get their just deserts.