Even as atomic bombs were exploded on Hiroshima and Nagasaki in August, 1945, the race to build an even larger nuclear weapon - the hydrogen bomb, or " Super " - began. Focusing on efforts in the United States, this PBS production looks back at the start of the Cold War, military programs in the era, arguments of project supporter Edward Teller and of opponents Robert Oppenheimer and Enrico Fermi. Written, produced and directed by Thomas Ott; narrated by David Ogden Stiers. Letterboxed. Closed captioned.