First aired: Sep/17/1971
Writer: Brian Clemens
Director: Basil Dearden
Guest star: Imogen Hassall (Maria Lorenzo), Alex Scott (Coley), Michael Godfrey (Robert Dupont), Bruno Barnabe (Maitre'D), Neal Arden (Inspector Flavel), John Acheson (Triver), Nina Baden-Semper (Air Hostess)

First aired: Sep/24/1971
Writer: Val Guest
Director: Roy Ward Baker
Guest star: Susan George (Michelle Devigne), Alfred Marks (Pullicino), Harold Goldblatt (Maurice Devigne), Michael McStay (Vernier), Hugh Manning (Chief of Police), Charles Houston (Jacoby), Balbina (Sister), Hugo de Vernier (Hospital Porter), Jean Driant (Douane)

First aired: Oct/01/1971
Writer: Terry Nation
Director: Val Guest, Sidney Hayers
Guest star: Sinéad Cusack (Jenny Lindley), Christian Roberts (Mark Lindley), Sue Lloyd (Maggie), Victor Platt (The Farmer), Garfield Morgan (Peter Hayward), Richard Hurndall (David Conron), John Kelland (Harvester), Veronica Hurst (The Secretary), Julie Crosthwaite (Mandy), Colin Vancao (The Major)

First aired: Oct/08/1971
Writer: Terence Feely
Director: David Greene
Guest star: Rosemary Nicols (Melanie Sadler), Cy Grant (Richard Congoto), Andrew Keir (Sir John Hassocks), Michael Martin (Jackson), Tom Adams (Piers Emerson), Carmen Munroe (Carmen Congoto), Clifton Jones (Dr. Kibu), George Woodbridge (Gregory Ward), Tommy Godfrey (Benny Ryan), Arthur Brough (Moorehead), Robert Cawdron (Leyland), Alan Chuntz (Valet)

First aired: Oct/15/1971
Writer: John Kruse
Director: Basil Dearden
Guest star: Annette Andre (Pekoe Raine), Terence Alexander (Matthew Crane), Melissa Stribling (Lisa Koestler), John Phillips (Koestler), Lionel Blair (Quinn Travis), Paul Whitsun-Jones (Inspector Blanchard), Leslie Crawford (Ravel), Vicki Woolf (Rent-a-car Girl)

First aired: Oct/22/1971
Writer: Michael Pertwee
Director: Roger Moore
Guest star: Ian Hendry (Lord Croxley), Anna Palk (Marie), Patrick O'Connell (Ryder), Robert Flemyng (Sir George), David Rees (TV Interviewer), Basil Dignam (Prime Minister), Duncan Lamont (Benton), Terence Sewards (Marsden), Campbell Singer (Porter), Geoffrey Toone (The General), Olga Lowe (Traffic Warden), Harry Fielder (Clay Pigeon Operator), Howard Lang (Coalition Club Member), Michael Nightingale (Coalition Club Member)

First aired: Oct/29/1971
Writer: Terry Nation
Director: Roy Ward Baker
Guest star: Reginald Marsh (Dr Fowler), Anne De Vigier (Nurse Crane), Bernard Lee (Sam Milford), Joanne Dainton (Miss Lindsay), Jeremy Burnham (Scott Maskell), Tony Wright (David Alton), Gerald Sim (Dr. Gordon), Johnny Briggs (Charlie), Vivien Neves (Danny's Girl), Diana Terry (Brett's Girl)

First aired: Nov/05/1971
Writer: Tony Williamson
Director: Leslie Norman
Guest star: Cyd Hayman (Lyn), Dudley Foster (Heather), Ed Devereaux (Ryker), Richard Vernon (Sir Maxwell Dean), Tim Goodman (Webster), Patrick Jordan (Pelli), Patrick Connor (Train Guard), Christopher Coll (London Agent), Graham Weston (Northern Agent), Peter Forbes-Robertson (Inspector Langford), Kit Taylor (Croupier)

First aired: Nov/12/1971
Writer: Brian Clemens
Director: Leslie Norman
Guest star: Anna Gael (Suzy), Derren Nesbitt (Groski), Kenneth J Warren (Verner), Juliet Harmer (Prue), Patrick Troughton (Count Clement Marceau), Gary Cockrell (Frank Wager), Jasmina Hilton (Serena), Frederick Jaeger (Luther), Michael Segal (Denton), Michael Anthony (Hotel Desk Clerk)

First aired: Nov/19/1971
Writer: Milton S. Gelman
Director: Val Guest
Guest star: Larry Storch (Angie), Lionel Murton (Ben), Kirsten Lindholm (Marissa Nave), John Alderson (Kyle Sandor), Anna Brett (Bank Secretary), Rose Alba (Madame La Gata), Alan Chuntz (Bodyguard)

First aired: Nov/26/1971
Writer: Terry Nation
Director: Peter R. Hunt
Guest star: Suzanna Leigh (Emily Major), Peter Vaughan (Schubert), George Baker (Britten), John Glyn-Jones (Dr. Hubert Rogers), Morris Perry (Beecham-Bennett), Neil Wilson (Police Constable), James Beckett (Previn), Jeremy Child (Carlton), James Bree (Bill Wilton), Leon Eagles (Prokofiev)

First aired: Dec/03/1971
Writer: Brian Clemens
Director: Leslie Norman
Guest star: Geoffrey Keen (Thaddeus Krane), Suzan Farmer (Ann Summers), Allan Cuthbertson (Colonel Wright), Juliet Harmer (Prue), Terence Edmond (Cliff Turner), Neil Hallett (Prentice), Peter Gilmore (Mather), Derek Newark (Lloyd), John Stone (Auctioneer), Patrick Newell (Fat Man)

First aired: Dec/10/1971
Writer: Michael Pertwee
Director: Roger Moore
Guest star: Leo Genn (Sir Hugo Chalmers), Nicola Pagett (Carla Wilks), Noel Willman (Theopolos), Madeline Smith (Carla I), Anouska Hempel (Carla II), Brian Jackson (Jenson), Glynn Edwards (Boris), Peter Sallis (Piper), Valerie Leon (Space Queen), Deborah Moore (Little Girl), Geoffrey Cheshire (Taxi Driver)

First aired: Dec/17/1971
Writer: Donald James
Director: Leslie Norman
Guest star: Terry-Thomas (Archie Sinclair-Beauchamp), Suzy Kendall (Kay Hunter), Stephen Greif (Krilov), John Orchard (Gregor), Stanley Meadows (David Price), Geraldine Moffat (Senka), Richard Burrell (Smith), Frank Maher (Jones), Michael Balfour (Donkey Cart Driver), Harry Fielder (Man in Hotel Lobby/Policeman)

First aired: Dec/24/1971
Writer: Tony Barwick
Director: Gerald Mayer
Guest star: June Ritchie (Charlie), Peter Bowles (Mitchell), William Marlowe (Carl Harris), Shane Rimmer (Lomax), J. M. Bay (Anderson), Karen Kessey (Joan), Katherine Kessey (Jean), Victor Platt (The Farmer), Bob Sherman (The Lieutenant), David Healy (Colonel Adler), Anthony Doonan (Grant), James Cosmo (Inspector Williams), Margaret Nolan (Sophie), Carol Cleveland (Girl at Airport), Michael Sloan (Radio Operator), George Fisher (Kramer)

First aired: Dec/31/1971
Writer: Terry Nation
Director: James Hill
Guest star: Hannah Gordon (Lucy), John Ronane (Rupert Hathaway), Leon Greene (Abel Gaunt), Michael Wynne (Policeman), Talfryn Thomas (The Poacher), Michael Sheard (Walden)

First aired: Jan/07/1972
Writer: Terry Nation
Director: Val Guest
Guest star: Joan Collins (Sidonie), Robert Hutton (Frank Rocco), Robert Rietty (Torino), Ferdy Mayne (Sangallo), Jean Marsh (Nicola), Arnold Diamond (Brusati), Ian Thompson (Vasile), Robert Gallico (Manny Howard)

First aired: Jan/14/1972
Writer: Tony Barwick, David Rolfe
Director: Leslie Norman
Guest star: Vivienne Ventura (Lisa Zorakin (as Viviane Ventura)), George Murcell (Zorakin), Sarah Lawson (Mary), Ralph Bates (Michel), Michael Culver (Kurt), David Cargill (Patterson), Ricardo Montez (Inspector Santos), Clive Cazes (Matra), George Roderick (Bodega Landlord)

First aired: Jan/21/1972
Writer: Walter Black
Director: Leslie Norman
Guest star: Catherine Schell (Kristin), Tony Bonner (Jon), Yutte Stensgaard (Bibi), Bernard Horsfall (Christianson), Griffith Jones (Lars Seelman), Frank Gatliff (Andersson), Penny Sugg (Liv), Walter Horsburgh (The Butler), Marianne Stone (Chambermaid)

First aired: Jan/28/1972
Writer: Peter Yeldham
Director: Roy Ward Baker
Guest star: Joss Ackland (Felix Meadowes), Nigel Green (Cavendish), Kate O'Mara (Heidi), Magda Konopka (Ingrid), George Merritt (Chivers), Elliott Sullivan (Pfeiffer), William Mervyn (Sir Charles Worthington), Harvey Hall (Ivan Alexis Ivanov), Carl Bohun (Dieter Schultz), Brian Hayes (Benson)

First aired: Feb/04/1972
Writer: Terry Nation
Director: Sidney Hayers
Guest star: Diane Cilento (Kate), Denholm Elliott (Roland), Ronald Culver (Duke of Caith), William Rushton (Lance), Moultrie Kelsall (Sir Angus), Christopher Sandford (Onslow), Ivor Dean (Mr. Beebe), Roger Moore (The General / The Admiral / Lady Agatha), Tony Curtis (Aunt Sophie)

First aired: Feb/11/1972
Writer: Harry W. Junkin
Director: Roy Ward Baker
Guest star: Gladys Cooper (The Grand Duchess Ozerov), Prunella Ransome (Princess Alexandra Ozerov), Gary Raymond (Sergei Ozerov), Joseph Fürst (Yelker), Georgina Simpson (Magda), Timothy Parkes (Walther), Denys Peek (Dante), Raymond Young (Inspector Mansour), Cyril Shaps (Professor Ganguin), Anouska Hempel (Stewardess), Arnold Ridley (Uncle Rodney), Yuri Borienko (Nikolai)

First aired: Feb/18/1972
Writer: Donald James
Director: Basil Dearden
Guest star: Jennie Linden (Shelley Masterton), Terence Morgan (Carl Foster), Thorley Walters (John Hatton), Harold Innocent (Coady), Robert Russell (Ramon), Roger Delgado (Estoban), Juan Moreno (Waiter)

First aired: Feb/25/1972
Writer: Terry Nation
Director: Peter Medak
Guest star: Penelope Horner (Carrie Bowman), John Cairney (The Jenkins Brothers), Donald Pickering (Morely Lyndon), Lois Maxwell (Louise Cornell), Maxwell Shaw (Vine), Tim Barrett (John Radcliffe), Sam Kydd (Dwyer), David Neal (Jerry Sandford), Jenny Hanley (Magda), Sean Lynch (Yates), Helena Ross (Joe), Russ Henderson (Sam), Harry Fielder (Mechanic)