Hacksaw Ridge is a war film based on the true story of Desmond Doss, a conscientious objector who served as a medic during World War II. Directed by Mel Gibson, the movie depicts Doss's incredible bravery and determination as he saves the lives of numerous soldiers during the Battle of Okinawa, all without carrying a weapon. Hacksaw Ridge explores themes of faith, courage, and the power of non-violence in the face of war.