On August 6, 1945, the United States of America dropped the world's first atomic bomb, on the Japanese city of Hiroshima, a decision that ushered in the nuclear age and marked the end of World War II. When the atomic bomb exploded at 8:15 A.M., 70,000 people were killed instantly. Thousands more were dead of radiation sickness within weeks. More still were sick, scarred, and deformed for the rest of their lives by the chemicals in the bomb. Three...

The invasion begins at night, with German cruisers slipping into harbor, and soon the Nazis occupy all of Norway. They station soldiers throughout the country. They institute martial rule. And at Vemork, an industrial fortress high above a dizzying gorge, they gain access to an essential ingredient for the weapon that could end World War II: Hitler's very own nuclear bomb. When the Allies discover the plans for the bomb, they agree Vemork must be...