Wyoming Engagement

It's 1873 and wealthy Rexwell Dunne is dying. As a last hurrah, he travels across the country in his Pullman rail car with his daughter Jenna, 22, and her conniving brother Carter, 24. One night as they are traveling through Wyoming and their father is sleeping, Carter lures Jenna out of the Pullman, where he shoots her and throws her off the train. Rancher Bodie Farnham, who is dreading a visit from his overbearing mother and the "perfect" debutante she is bringing with her from Omaha, finds the unconscious and nearly dead Jenna on his property.
She slowly regains her health at his ranch but suffers from amnesia. In a moment of panic, Bodie tells his mother the injured young woman, whom he has named Abby, is his fiancée. The amnesiac believes him, and his cook/housekeeper joins him in the deception. Bodie's mother and the debutante work to break up "Abby" and Bodie and trap him into a marriage with the ruffled young woman from Omaha. As he becomes more attracted to Abby, Bodie wallows in guilt for his dishonesty.
Meanwhile, Carter gets closer to the ranch to finish the job he started so he won't have to share his inheritance.