While Eastman and patrician schoolteacher Elaine Goodale (Anna Paquin) work to improve life for the Sioux on the reservation, Senator Dawes lobbies President Grant (Thompson) for more humane treatment, opposing the bellicose stance of General William Tecumseh Sherman (Feore).
Hope rises for the Sioux in the form of the prophet Wovoka (Studi) and the Ghost Dance - a messianic movement that promises an end of their suffering under the white man.
This hope is all but obliterated after the killing of Sitting Bull and the massacre of hundreds of Lakota men, women and children by the 7th Cavalry at Wounded Knee Creek on Dec. 29, 1890.
Published in 1971, Dee Brown's book is one of the foremost works documenting the systematic subjugation of the American Indian during the latter half of the 19th century. It has sold nearly five million copies and has been translated into 17 languages.
From Brown's encyclopedic tome chronicling the fate of the Dakota, Ute, Cheyenne and other tribes, the film focuses on the events leading up to the massacre of the Sioux, which many consider one of the most grievous atrocities in United States history.