In 1945, J. Robert Oppenheimer was a hero. As director of the Manhattan Project, he led the team which developed the atomic bomb which ended World War II. However, during the McCarthy era, Oppenheimer's misgivings about nuclear warfare would bring him into conflict with J. Edgar Hoover and lead to revocation of his security clearance by the Eisenhower administration. A decade later, in an extraordinary act of political rehabilitation, he would be awarded the Enrico Fermi prize by President Johnson. This miniseries chronicles his astonishingly swift fall from grace and his controversial redemption.