[The scene opens on a shot of Big Ben at night. It then cuts to a policeman standing in front of a bank building. It is very foggy. The title card appears: VAULT OF DEATH Cuts to a woman walking down the street. Only her feet are seen. The policeman can hear her footsteps. The woman approaches the policeman from behind, and he spins around quickly, shining his torch in her face. The woman turns out to be Lady Penelope.] [Suddenly, a hand appears from behind the policeman and holds a wad of cotton wool over his face. The policeman falls to the floor unconscious.] [Another hour passes.] 'PART THREE'