During WWI, German Zeppelins are unopposed while bombing London. Junior British officer Geoffrey Richter-Douglas (Michael York) is having a fling with Stephanie, a German spy trying to recruit him. The British military want him to be a double agent. He escapes to Germany pretending to be a deserter. In Germany, he connects with old friend Professor Altschul and young wife Erika (Elke Sommer), both Zeppelin scientists.
The human story is rather slow and boring. Once he gets on the Zeppelin, it becomes a submarine movie. The miniatures are fun. It's a fun thriller while they're on the Zeppelin. I do have many questions about Geoffrey's actions. At the very least, he wouldn't get back on the ship. I do like the dog fight, but he's only there to be there. The writing is not this movie's strong suit.
The human story is rather slow and boring. Once he gets on the Zeppelin, it becomes a submarine movie. The miniatures are fun. It's a fun thriller while they're on the Zeppelin. I do have many questions about Geoffrey's actions. At the very least, he wouldn't get back on the ship. I do like the dog fight, but he's only there to be there. The writing is not this movie's strong suit.