This big-budget, big-studio espionage film is set in the last years of World War II. George Peppard, Tom Courtenay and Jeremy Kemp parachute into Germany, with orders to destroy the Nazis' rocket base at Peenemunde. Featuring Sophia Loren as the wife of the Nazi collaborator whom Peppard is pretending to be, Operation Crossbow failed badly in its first release; MGM, deciding that the title misled moviegoers into thinking that the picture was a "Robin Hood" derivation, cleared up matters by renaming the film The Great Spy Mission.