To start their new life together, Jamie Pratt and his young bride join a wagon train bound for the Bitterroot Valley. They get as far as Helena when their unscrupulous wagon master deserts, leaving the settlers stranded. The others on the train decide to settle near Helena, but Jamie decides to go on alone to reach his family’s ranch in the Bitterroot Valley. When the young couple turn up missing, Jamie’s older brother, Monroe, enlists the services of John Hawk, a trail-hardened army scout. Monroe finds out right away that he has made a wise choice.