Hiroshima is the story of six human beings who lived through the greatest single manmade disaster in history. John Hersey tells what these six -- a clerk, a widowed seamstress, a physician, a Methodist minister, a young surgeon, and a German Catholic priest -- were doing at 8:15 a.m. on August 6, 1945, when Hiroshima was destroyed by the first atomic bomb ever dropped on a city. Then he follows the course of their lives hour by hour, day by day.