S21, E1: J. Robert Oppenheimer's life and legacy are inextricably linked to America's most famous top-secret initiative - the Manhattan Project. But after World War II, this brilliant and intense scientist fell from the innermost circles of American science, and at the height of the Red Scare, the veil of suspicion fell over Oppenheimer. This biography presents a complex and revealing portrait of one of America's most influential scientists.