1938: Robert Oppenheimer's life is changed by the discovery of nuclear fission and the appearance of Kitty Harrison.

1942: America is at war. Oppenheimer is engaged in the race to produce an atomic bomb.

1943: Oppenheimer is director of Los Alamos, but his past Communist associations alert the FBI.

Summer 1944: Oppenheimer has problems with his staff and the development of the bomb.

May 1945: The European war is over but the war with Japan continues. Oppenheimer discusses the use of the almost completed atomic bomb with the secretary of War. His colleagues have misgivings.

1949 - The Oppenheimer family becomes a target of the HUAC hearings.

December 1953 - Oppenheimer falls foul of the Communist witch hunt.