Cavalry officer, Major James Tucker looks forward to becoming a regular citizen and restarting his law practice in Boston, but the needs of the U.S. Cavalry always supersede the wants of the individual and Tucker must clean up trouble in Wylder before he can separate from service. Trouble in the form of a falsely accused Lakota boy and his wildly independent half-sister has him wondering if the plans he's made are truly still the desires of his heart. Daughter of a prostitute, Estelle returns to Wylder, the place of her birth, to rescue her brother and discover the identity of her birth father. She comes to trust Tucker with her brother's safety, but Estelle's reluctance to trust her heart jeopardizes her own safety when her nightmare comes to call.