Castillo Jameson has been hunting a murderer for years. But the outlaw never expected his search to lead to a stand–off on a train – or to saving a beautiful woman caught in the crossfire...

Caroline Hartford has her own troubles – she wants to become a physician, but her parents demand she marry first. Then Castillo arrives at the wedding she's attending, and Caroline has the perfect solution. She'll keep the outlaw's identity a secret...if he pretends to be her fiancé!