Allied agents infiltrate the Nazi rocket complex at Peenemunde in order to obtain their secrets and sabotage the plant. The film alternates between German developments of the V-1 missile and V-2 rocket (with a German cast speaking their own language) and discovery by British Intelligence of the weapon.
Sophia Loren
Nora Van Ostamgen
George Peppard
Lt. John Curtis
Trevor Howard
Professor Lindemann
John Mills
General Boyd
Richard Johnson
Duncan Sandys
Tom Courtenay
Robert Henshaw
Jeremy Kemp
Captain Phil Bradley
Anthony Quayle
Bamford
