Jim Thorpe was an extraordinary athlete, a Native American who became an Olympic gold medalist. Pop Warner was an Ivy League graduate, an indomitable coach, and a football mastermind. Before these men became legends in their own right, they met in 1907 at the Carlisle Indian Industrial School in Pennsylvania, where they forged one of the most celebrated teams in American football history. Called "the team that invented football," they took on the best opponents of their day, defeating privileged schools such as Harvard and the Army in a series of breathtakingly close calls, genius plays, and bone-crushing hard work. Undefeated: Jim Thorpe and the Carlisle Indian School Football Team is an inspiring underdog sports story and more. It's an unflinching look at the U.S. government's violent persecution of Native Americans and the school that was designed to erase Indian cultures. Expertly told by nonfiction author Steve Sheinkin, this is the story of a group of young men who came together at that school, the obstacles they faced both on and off the field, and their absolute refusal to accept defeat.