Three times oscar nominated clifton webb robert flemying and oscar winner gloria grahame star in this highly acclaimed 1956 british war film based on an incredible true story in 1943 two intelligence officers from the royal navy clifton webb robert flemying attempt to pull off the most daring espionage mission of the second world war the allies are about to invade sicily but the germans must be convinced that their real target is greece a briefcase containing plans for the fake invasi