Calling Bulldog Drummond

After three robberies are pulled off with military precision, Inspector McIver (Charles Victor) asks Hugh "Bulldog" Drummond (Walter Pidgeon) to give Scotland Yard a hand. As an ex-officer, Drummond knows how the suspected military mastermind would think. He agrees, though he very reluctantly accepts Sergeant Helen Smith (Margaret Leighton) of Special Branch as his partner, believing that women are not cut out for that sort of undercover work.