Katie McCabe, daughter of an Indian trader, finds herself alone when her family is killed in a battle between the Army and the Indians. She is rescued by Black Moon, a fierce Lakota warrior who has vowed to keep the white people from taking his land, and is taken to live with his people. The love that ignites between these two wild hearts is tested by treachery, abduction, prejudice, a promise to a dying woman and the tensions that erupt between the Sioux and the Army. From the desolation of the Great Plains to the opulence of St. Louis, a headstrong white girl and a proud Lakota warrior fight for their love and the wild country of their birth.