First aired: Sep/16/1969

First aired: Sep/23/1969

First aired: Sep/30/1969

First aired: Oct/07/1969

First aired: Oct/14/1969

First aired: Oct/21/1969

First aired: Oct/28/1969

First aired: Nov/04/1969

First aired: Nov/11/1969

First aired: Nov/18/1969
Writer: Bryan Cooper
Guest star: John Owens (Corporal Bennett), Robert Cartland (Lt. Col. Danvers), Terrance Denville (Police Sgt. Peters), Derek Benfield (Sergeant Moggs), Garfield Morgan (Major Smith), Ivor Dean (Sir Hillary Winters), Jonathan Newth (Captain Benson)

First aired: Nov/25/1969

First aired: Dec/02/1969

First aired: Dec/09/1969

First aired: Jan/08/1971

First aired: Jan/15/1971

First aired: Jan/22/1971
Guest star: Mike Pratt (Brian Alwyn), George Pravda (Otto Gunter)

First aired: Jan/29/1971

First aired: Feb/05/1971

First aired: Feb/12/1971

First aired: Feb/19/1971

First aired: Feb/26/1971

First aired: Mar/05/1971

First aired: Mar/12/1971
Guest star: Irlin Hall (Vera), Preston Lockwood (Sam Mogford), J. G. Devlin (Lock)

First aired: Mar/19/1971

First aired: Mar/26/1971

First aired: Apr/02/1971

First aired: Jun/22/1973
Guest star: Bart Allison (Caretaker), Frederick Hall (Churchill), Joseph Greig (Mr. Pointer), Nigel Hawthorne (Oliver Mason)

First aired: Jun/29/1973

First aired: Jul/06/1973

First aired: Jul/13/1973
Guest star: David Webb (Willie Pickup), Margot Thomas (Lady Coleshill), Anthony Nicholls (Sir Nigel Colehill)

First aired: Jul/20/1973

First aired: Jul/27/1973
Guest star: Frank Crawshaw (Committee Member), Barbara Shelley (Susan Paige)

First aired: Aug/03/1973
Guest star: Alan Gerrard (Councillor Glazebrook), David Neal (Freddy Waring), Richard Hurndall (Sir George Osborne), David Daker (Ted Prior), Richard Kane (John Stevenson)

First aired: Aug/10/1973

First aired: Aug/17/1973

First aired: Aug/24/1973

First aired: Aug/31/1973

First aired: Sep/07/1973

First aired: Sep/14/1973

First aired: Mar/05/1976

First aired: Mar/12/1976

First aired: Mar/19/1976

First aired: Mar/26/1976

First aired: Apr/02/1976

First aired: Apr/09/1976

First aired: Apr/16/1976

First aired: Apr/23/1976

First aired: Apr/30/1976

First aired: May/07/1976

First aired: May/14/1976

First aired: May/21/1976

First aired: May/28/1976