Senior officials in the British, American and Russian governments all receive the same cryptic and unsigned message - "I Can Destroy The Sun". What can it mean?
Maurice Denham
Dr. Lunn
John Robinson
Lloyd Crichton
Robert Ayres
Boardman
Leslie Sands
Superintendent Travers
Jan Conrad
Igor Petrov
John Barron
Henry Walpole
Robert James
James Cartright
Jennifer Wright
Mary Harkness
Paddy Webster
Helen Dawson
Carmel McSharry
Bella
Jimmy Sangster
Writer
Wilfred Eades
Director
Sydney Newman
Producer
Voytek
Production Design
