Documentary, first broadcast in 1966, that tells the history of the superbomb, exploring the race by scientists to imitate the nuclear reactions of the sun and build the first thermonuclear weapon. The film reveals how the careers and reputations of some of the scientists involved were seared in the process.

Ronald Baddiley
as Narrator

Robert Beatty
as Narrator

J. Robert Oppenheimer
as self (archive footage)

Edward Teller
as self (archive footage)

George Gamow
as self (archive footage)

Enrico Fermi
as self (archive footage)

Hans Bethe
as self (archive footage)

King Gustaf V
as self (archive footage)

George Thomson
as self (archive footage)

C. E. M. Joad
as self (archive footage)