Scotland Yard's Major Charles Hammond (Ralph Richardson) is tasked with the mission to uncover why multiple bomber planes have vanished during test operations. The investigation leads the intrepid (if somewhat bumbling) Hammond and his sister (Valerie Hobson) to a pilot (Laurence Olivier) who had firsthand experience with sabotage. Comic spy thriller co-stars George Curzon, George Merritt. AKA: "Clouds Over Europe." 82 min. Standard; Soundtrack: English.