In May 1945 on Okinawa, one unarmed medic climbed into the most dangerous battlefield in the Pacific War. Private First Class Desmond Doss refused to carry a weapon because of his faith, yet he ran through gunfire to rescue wounded soldiers again and again. Alone on Hacksaw Ridge, he spent the entire night lowering injured men down a 400-foot cliff using a rope and a knot he invented himself. By morning, he had saved 75 soldiers who would have otherwise been left to die. This is the unbelievable true story of the man who refused to kill—and became one of the greatest heroes of World War II.