The Nez Perce show up on the Lapwai Reservation just in time for a small group of Natives to kill nearby settlers. Joseph and his people must outrun the American Army on an epic journey. Will they escape?

Sources

Thunder in the Mountains by Daniel Sharfstein 

Chief Joseph & Flight of the Nez Perce by Kent Nerburn

Bury My Heart at Wounded Knee by Dee Brown

https://ww2020.net/history-websites/walla-walla-treaty-council-of-1855/

Walla Walla Treaty Councils: 1855 Walla Walla Treaty Council

https://www.historylink.org/File/5314

Political Elements of Nez Perce history during mid-1800s & War of 1877 by Stan Hoggatt (archive.org)

https://treaties.okstate.edu/treaties/treaty-with-the-nez-perces-1863-0843

Treaty of 1863 - Nez Perce National Historical Park (U.S. National Park Service) (nps.gov)