The Avengers · S6, E3
Super Secret Cypher Snatch
An espionage ring is stealing secrets from the Government's top secret Cypher HQ, by posing as window cleaners. MI-12 are assigned to the case, but when their man Jarett is murdered Steed takes over, to investigate Classy Glass Cleaning. But Tara, posing as a new secretary inside Cypher HQ, swears no one has penetrated its security.
