The story of an Indian youth's love for his horse, Tonka. White Bull, a young brave in the Sioux tribe captures and tames a magnificent wild horse. Rather than see it mistreated by a cruel cousin, White Bull sets the animal free. Tonka is eventually obtained by the U.S. Cavalry and is saddled for General Custer's ill-fated confrontation at Little Big Horn-- and a gripping, unexpected reunion with White Bull.

This book describes the life and accomplishments of Sitting Bull, leader of the Lakota Sioux who fought for his people against the white man and who defeated Custer at the Battle of the Little Bighorn.