Morgan Beaudine and his sister Patricia are captured by a Cheyenne raiding party who kill all in the wagon train except them. Taken back to the tribe, they are raised as Cheyenne. Eight years later, Morgan is captured by the Army and held until his brother Quentin is called in to take control of a "White" Indian. After discovering they are brothers and that their sister is still alive, the Beaudines set off on a quest to find "White Antelope". [This 93 min 'TV movie' was the pilot for the 'TV series', which began airing four months later (in September)]