"In 1946, genius linguist and codebreaker Meredith Gardner discovered that the KGB was running an extensive network of strategically placed spies inside the United States, whose goal was to infiltrate American intelligence and steal the nation's military and atomic secrets. Over the course of the next decade, he and young FBI supervisor Bob Lamphere worked together on Venona, a top-secret mission to uncover the Soviet agents and protect the Holy Grail...

Butler explores for the first time the complex partnership during World War II between FDR and Stalin, reassessing in-depth how the two men became partners, how they shared the same outlook for the postwar world, and how they formed an uneasy but deep friendship, shaping the world's political stage from the war to the decades leading up to and into the new century.