It is the Second World War and the Royal Air Force (RAF) attacks Germany V-1 flying bomb installations during the early summer of 1944. The de Havilland Mosquito fighter-bomber aircraft of Squadron Leader David "Scotty" Scott (David Buck) is shot down during a low-level bombing raid on a V-1 launching site and Scott and his navigator/bomb-aimer are reportedly killed. His wingman and friend, then-Flight Lieutenant (later insignia Royal Canadian Air Force squadron leader) Quint Munroe (David McCallum) comforts Scott's wife Beth (Suzanne Neve) and a romance soon develops, rekindling one that they had had years earlier.