Upon uncovering her tyrannical father's malevolent plot to commit her to an asylum, Beth Rutledge fabricates a plan of her own. She will rescue her mother, who had already been sent to the asylum, and escape together on a wagon train heading west. Posing as sisters, Beth and her mother travel with the pioneers in hopes of making it to Idaho before the others start asking too many questions.

Wagon-train scout Jake Holt senses that the mysterious women in his caravan are running from something. When rumors begin to spread of Pinkerton agents searching relentlessly for wanted criminals who match the description of those on his wagon train, including Beth, she begins to open up to him, and he learns something more sinister is at hand. Can they risk trusting each other with their lives--and their hearts--when danger threatens their every step?