One year after the bombing of Hiroshima, a masterpiece of 20th century journalism was born. "Hiroshima," written by American John Hersey, shocked readers with its detailed account told from the perspective of the survivors. Hersey's grandson, Cannon, has retraced his grandfather's footsteps to uncover the hidden secrets behind that groundbreaking story.

The Atomic Bomb Dome was once an industrial promotion hall in a busy commercial district. Then the bomb exploded above the building, killing everyone inside. The building's ruins became an icon of the anti-nuclear movement. People in Hiroshima hoped their experience would convince the world to renounce the weapons.