Yes, Prime Minister - Season 1 - Eps 8: One of Us
Hacker threatens to place Sir Humphrey on leave while a security inquiry looks into why he cleared a confessed Soviet spy many years earlier, so Sir Humphrey retaliates with a dog in distress on Salisbury plain.
About Yes, Prime Minister

Title: Yes, Prime Minister
First Air Date: 1986-01-09
Last Air Date: 1988-01-28
Status: Ended
Rating: 8.36/10 (from 121 votes)
Language: EN
Seasons: 3
Total Episodes: 16
Network: BBC Two
Genres: Comedy
Production Companies: BBC
Synopsis
James Hacker MP the Government's bumbling minister for Administrative Affairs is propelled along the corridors of power to the very pinnacle of politics - No. 10. Could this have possibly have been managed by his trusted Permanent Private Secretary, the formidably political Sir Humphrey Appleby who must move to the “Top Job” in Downing Street to support him, together with his much put upon PPS Bernard Wolley. What could possibly go wrong?
Cast

Paul Eddington
Jim Hacker

Nigel Hawthorne
Sir Humphrey Appleby

Derek Fowlds
Bernard Woolley