Peter Ustinov writes and directs this wartime drama following the British scientists who developed the first radar system. Led by Professor Heatherville (Ralph Richardson), five research scientists are required to work in total secrecy to develop the vital navigational tool. As war breaks out across Europe the scientists are moved and housed together to accelerate the key breakthrough required to begin mass development of the pioneering system. As the danger of their mission increases and their home island is threatened with a Nazi invasion the team find their work and personal life under increasing pressure on all fronts.
Director: Peter Ustinov
Producer: George H. Brown
Producer: Peter Ustinov
Writer: Peter Ustinov
Music: Alan Rawsthorne
Cinematographer: Jack Hildyard
Actor: Ralph Richardson
Actor: Raymond Huntley
Actor: Richard Attenborough
Actor: John Laurie
Actor: Ernest Jay
Actor: David Tomlinson
Actor: Finlay Currie
Actor: Norman Webb
Actor: Michael Hordern
Actor: Pamela Matthews
Actor: Joan Haythorne
Actor: Joan Young