During World War II, Desmond T. Doss, an American Army medic, served in the Battle of Okinawa without ever taking a life. As a conscientious objector, he upheld his moral belief to never kill, despite the immense pressure and danger surrounding him. His courage and dedication to saving others led him to rescue 75 men during the battle, making him the first conscientious objector in U.S. history to receive the Congressional Medal of Honor.