As it documents a survivor's devastating yet inspirational life story, “The Last Atomic Bomb” interweaves the still controversial U.S. decision to use the bomb, censorship in the U.S. and Japan of the bomb or its effects, discrimination against survivors by other Japanese, buildup of nuclear weapons during the Cold War, the anti-nuclear movement, and today’s nuclear proliferation issues. The film relates the story of Sakue Shimohira who was hiding in a shelter near ground zero when the bomb exploded 60 years ago. Her emotionally wrenching experiences are interwoven with rare archival footage and accounts of the bomb and its aftermath.