Desmond Doss (Andrew Garfield) called himself a "conscientious supporter." He wanted to support the troops fighting in WWII; he just would not touch a gun. And so, after brutal bullying and assaults and a court-martial, he was permitted to "go into battle without a gun." And so, as a part of the "Liberty Battalion" of Army's 77th Infantry Division, he went into one of the most dangerous battles of the war, with no weapons, just a Bible and some syringes with morphine.