2. Episode 2

1942: America is at war. Now in charge of the top-secret Manhattan Project, Oppenheimer's left-wing politics mean that he's constantly under surveillance by the FBI and others.

3. Episode 3

1943: Oppenheimer is appointed director of Los Alamos, but his past Communist associations alert the FBI. Meanwhile, his extramarital relationship with the neurotic Jean Tatlock comes to a tragic end.

4. Episode 4

Summer 1944: With the death of President Roosevelt, the future of the Manhattan Project seems doubtful. Oppenheimer finds himself more and more at loggerheads with Teller.

5. Episode 5

May 1945: The European war is over but the conflict with Japan rages on. Oppenheimer discusses the almost completed atomic bomb with the Secretary of War. However, his colleagues have misgivings.

6. Episode 6

1949: A few years after the war, Oppenheimer finds himself regarded as a security risk, and must face the HUAC committee.

7. Episode 7

December 1953: Oppenheimer's examination by the committee proves disastrous and his career with the AEC is finished, whilst that of his rival Teller flourishes.