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
as Nora Van Ostamgen

George Peppard
as Lt. John Curtis

Trevor Howard
as Professor Lindemann

John Mills
as General Boyd

Richard Johnson
as Duncan Sandys

Tom Courtenay
as Robert Henshaw

Jeremy Kemp
as Captain Phil Bradley

Anthony Quayle
as Bamford

Lilli Palmer
as Frieda

Paul Henreid
as General Ziemann
John Chard
If you're chute doesn't open, change it for a harp! A passable WWII movie boosted by star casting and a grand finale. Plot essentially is about some Allied agents planning to infiltrate the Nazis' secretive rocket factory in Holland and destroy their deadly V rockets. Much of the pic is given ...
JPV852
Engaging war-thriller doesn't always hit on all cylinders but the finale was suspense-filled and I do appreciate how the filmmakers handled the deaths, not at all sensationalized. No real standout performances but the cast did a fine job, though a bit surprising to see Sophie Loren got top-billing b...
CinemaSerf
There is something a little bit reminiscent of "The Adventures of Tartu" (1943) about this film. The Nazis are using ever increasingly effective missiles to bombard South East England and when the boffins discover their new, portable, V1 and V2 rockets then a team is assembled to go into the heart o...