The Germans threaten to turn the tide of war back their way with a new super-weapon, a guided rocket bomb capable of devastating vital parts of England. One of the rockets misfires on a test flight and lands in neutral Sweden intact. When the Allies learn that a Swedish underground group has retrieved the rocket, they enlist Gallagher and Komansky to clandestinely fly over to get it. They also procure a British rocket specialist, Group Captain Carmichael, a former RAF fighter pilot. Unfortunately, Carmichael bears a grudge against Americans because he was accidentally shot down by one, ending his flying career. Besides hostility toward Gallagher and Komansky, he also manifests his annoyance by drinking excessively, making him a potentially fatal liability as the team races a group of Nazis with the same goal. (thetvdb.com)