It's 1867. A band of outlaws is terrorizing settlements throughout the Midwest. One day, they engage a posse, which wounds their leader, Clayton Sharp. The gang leave him with Mormon pioneers, threatening them with harm if he dies in their care. As he recovers, Clayton falls in love with Annie Kimball, who encourages him to pursue a new life. Determined to save his companions from the gallows, Clayton rides after them, promising Annie he would return. Searching tirelessly, Sharp encounters robbers, Indians, and the newly formed Seventh Cavalry, before eventually making a decision that will change his life forever.