Escuadrón 633 ( Argentina, Spain) Eskadra 633 ( Poland) Flyvereskadrille 633 ( Denmark) Kampfgeschwader 633 ( West Germany) Laivue 633 iskee ( Finland) Sminos 633 ( Greece) Squadriglia 633 ( Italy) Squadron 633 ( (undefined))
An RAF squadron is assigned to knock out a German rocket fuel factory in Norway. The factory supplies fuel for the Nazi effort to launch rockets on England during D-Day.
633 Squadron has enjoyed an unqualified string of successes. Their luck changes when they are assigned to bomb a German rocket fuel plant, in Norway which is guarded by heavy anti-aircraft defences, and the plant is considered bomb-proof. Their nearly impossible mission is further complicated by a German air raid, the difficult approach to the target and the capture and torture of the underground leader who is assisting the squadron.