It's 1943 Nazi Germany. The movie is split between the Germans working to built rockets and the British trying to stop them. First the Brits launch a massive bombing raid on Peenemünde. Then they send spies to infiltrate a secret rocket factory. Robert Henshaw (Tom Courtenay), John Curtis (George Peppard) and Phil Bradley (Jeremy Kemp) are parachuted into Germany given the identities of dead Dutch engineers. Bamford (Anthony Quayle) is an undercover German agent who returns to become a German security officer. Nora Van Ostamgen (Sophia Loren) is the wife of Curtis' dead Dutch identity and she wants him to sign some papers.
It's a fictional accounting of the real Allied operations against the German rocket weapons program. There are limited scenes of the bombings. This is mostly a scheme to infiltrate the German base. The foreign characters speak non-English with subtitles. That accounts for large chunks of the movie. Sophia Loren's role is only a supporting one. Peppard isn't introduced until after 30 minutes. It's not a tightly written movie. There is some good tension. There is a giant set of the underground rocket base. This is more functional than anything terribly exciting.
It's a fictional accounting of the real Allied operations against the German rocket weapons program. There are limited scenes of the bombings. This is mostly a scheme to infiltrate the German base. The foreign characters speak non-English with subtitles. That accounts for large chunks of the movie. Sophia Loren's role is only a supporting one. Peppard isn't introduced until after 30 minutes. It's not a tightly written movie. There is some good tension. There is a giant set of the underground rocket base. This is more functional than anything terribly exciting.