633 Squadron is a 1964 war drama directed by Walter Grauman and based on the novel of the same name by Frederick E. Smith. Set during World War II, it follows a mission by Royal Airforce Squadron 633 as they take part in an assigned bombing raid. Their target is a manufacturing installation in Norway run by the German Nazis. While the 633 has seen great success in the past, their new assignment will be quite difficult, as the Nazis have heavily fortified the factory's structure and surrounded it with a battery of anti-aircraft guns. To make matters even worse, the target is located in a particularly hard-to-reach environment, surrounded by steep Norwegian fjords, and the resistance leader who was providing insider information to the British has suddenly gone silent. Will 633 Squadron be able to pull off their daring raid on a seemingly impenetrable enemy target, or will the Nazi fortifications cause the noble squadron to crash and burn?