Haunting depiction re-reates the circumstances surrounding the dropping of the first atomic bomb in 1945. Juxtaposes scenes between the U.S., Japan, and their leaders--President Truman (Welsh) and Emperor Hirohito (Umewaka)--with the development of the Manhattan Project, the bombing itself, and its consequences. Filmed primarily in B&W, with newsreel and contemporary witness interviews in color; Japanese sequences are subtitled in English. Filmed on location in Montreal and Tokyo.