The film depicts the
nuclear arms race that developed among the major powers during
World War II, ultimately setting the stage for the
Cold War. The story begins with the 1945
Meeting at the Elbe between American and Soviet forces and the subsequent
Potsdam Conference, where
Harry S. Truman reveals that the U.S. now possesses a powerful new weapon and will not concede in the postwar division of
Europe. The first part of the film focuses on the war years, covering the
Manhattan Project and the American effort to outpace the Germans in developing atomic weapons, while
Joseph Stalin decides the
Soviet Union must initiate its own atomic program. Allied forces interrogate German scientists in
Operation Epsilon to assess Nazi progress on nuclear technology, with physicist
Otto Hahn burdened by guilt over the bombings of
Hiroshima and
Nagasaki, feeling responsible as a key figure in nuclear research. The film then revisits the early 1940s, when
Franklin D. Roosevelt authorizes the Manhattan Project following
Albert Einstein’s warning. Meanwhile,
Adolf Hitler underestimates atomic weapons’ significance, halting Nazi nuclear efforts. In 1942, Stalin assembles Soviet scientists at his
Kuntsevo Dacha, inspired by a letter from Junior Lieutenant
Georgy Flyorov suggesting that the Allies are advancing nuclear research.
Igor Kurchatov is selected to lead the Soviet effort, initiating the USSR’s atomic project amid wartime deprivation. In the second part, the film shifts to the Soviet post-war nuclear program, as scientists progress from experiments to testing their first atomic bomb at the
Semipalatinsk Test Site. The film also portrays the ethical struggles faced by scientists like
J. Robert Oppenheimer, who is torn over his role in developing the bomb, and Kurchatov, who later advocates for peaceful nuclear initiatives and the future potential of controlled
nuclear fusion. Throughout, the film addresses the profound personal dilemmas confronting the scientists who helped shape the nuclear age. ==Production==