Mosquito Squadron (1969)

David McCallum stars as Quint Munroe, a newly appointed British WWII Squadron Leader. He acquired that title after the former leader, his best friend Scotty (David Buck), was shot down by Nazis while they were performing a bombing run trying to knock out V-1 missile ramps in France. 

The new mission for the squadron is a tricky one. They must get a bomb into an underground tunnel where they believe the Germans are developing an even more sinister missile. They have only a short time to practice with the new bouncing bombs to achieve this goal. Things get complicated when the military find out that the Nazis are holding Allied POWs captive in the complex that they plan on destroying.

Available: Netflix, Amazon