First aired: Jun/04/1974

First aired: Jan/02/1975
Writer: Trevor Preston
Guest star: Brian Blessed (Frank Kemble), June Brown (Mrs. Martin), Alan Lake (John Merrick), Jack McKenzie (Len), Ray Mort (Bernard Driscoll), Toni Palmer (Edi Driscoll), Colin Douglas (Commander), Ian Hendry (Dave Brooker), Angus MacKay (Alec Prosser)

First aired: Jan/09/1975
Director: Tom Clegg
Guest star: Richard Davies (Doctor), Bart Allison (Wilf), Morris Perry (Det. Chief Supt. Maynon), Sally Faulkner (WPC Pat Bond), John Flanagan (DS Matt Mathews), W. Morgan Sheppard (Det. Chief Insp. Morrison), Jack McKenzie (Len)

First aired: Jan/16/1975
Director: Tom Clegg
Guest star: John Flanagan (DS Matt Mathews), Morris Perry (Det. Chief Supt. Maynon), Brian Wilde (Stanley Hedges), Peter Jeffrey (Det. Supt. Pringle), Brian Glover (Moose), Maurice O'Connell (Morgan)

First aired: Jan/23/1975
Guest star: Morris Perry (Det. Chief Supt. Maynon), Lynn Dearth (Sheila Lyon), Ben Howard (Ronnie), Gertan Klauber (Emilio), Tony Caunter (Derek Clarke), John Flanagan (DS Matt Mathews), Tony Selby (Johnny Lyon), Julian Glover (Bernard Stone), Christopher Ellison (Philip Budd), Walter Henry (Policeman), Rocky Ryon (Policeman)

First aired: Jan/30/1975
Guest star: Sheila Gish (June), Del Henney (Eddie Boyse), Evie Garratt (Steadman's Daughter), Richard Hampton (Hilary Elkin), Stephanie Turner (Alison Carter), Jack Woolgar (Fred Steadman - Night Watchman)

First aired: Feb/06/1975
Guest star: Nick Brimble (Det. Con. Gerry Burtonshaw), T. P. McKenna (Det. Supt. Grant), Peter Childs (Jim), Derrick O'Connor (Eagle)

First aired: Feb/13/1975
Writer: Trevor Preston

First aired: Feb/20/1975
Director: Douglas Camfield
Guest star: James Marcus (Myles), Prunella Gee (Sandy Williams), Michael McStay (Eric - Nightclub Manager)

First aired: Feb/27/1975
Director: Tom Clegg
Guest star: Peter Miles (Bradshaw), Tony Jay (Lambourne)

First aired: Mar/06/1975
Writer: Allan Prior
Director: Terry Green

First aired: Mar/13/1975
Writer: Allan Prior
Director: Viktors Ritelis

First aired: Mar/20/1975
Writer: Robert Banks Stewart
Director: William Brayne
Guest star: Jim Norton (Phil Harrister), Ivor Roberts (Sale), Tony Anholt (Mark Colebrook), Frank Jarvis (Prison Officer), Cheryl Hall (Jenny), Sydney Arnold (Tilley), John Collin (Parish), Colin Douglas (Commander), David Jackson (Eddy Cory), Harry Fielder (Bank Robber)

First aired: Mar/27/1975
Writer: Trevor Preston
Director: Tom Clegg
Guest star: Stephanie Turner (Alison Carter), Arnold Diamond (Dr. Cohen), Wanda Ventham (Brenda), Patricia Maynard (Miss Doreen Alexander), Eric Mason (Kenny Jarvis)

First aired: Sep/01/1975
Writer: Trevor Preston

First aired: Sep/08/1975
Guest star: Jeffrey Wickham (Major Carver), Grahame Mallard (Ingram), Barry Stanton (The German, aka Otto Schmidt)

First aired: Sep/15/1975

First aired: Sep/22/1975
Writer: Trevor Preston

First aired: Sep/29/1975
Guest star: Sheila Ruskin (Judy Grinden), Katherine Parr (Mrs. Carter), Terry Bale (Minicab Operator), Gary Waldhorn (Alan Fowler), Margaret Whiting (Fladge), Liz Smith (Mrs. Davies, Landlady), Stephanie Turner (Alison Carter), Patrick Troughton (Reg Crofts), James Snell (Johnny Moxom), Michael Sheard (Mr. Penketh)

First aired: Oct/06/1975
Guest star: Harry Jones (Hooter), Harry Fielder (Pub Patron)

First aired: Oct/13/1975
Guest star: George Layton (Ray Stackpole), Philip Madoc (Det. Supt. Pettiford), Anne Stallybrass (Doreen Haskins), Madhav Sharma (Earle), Damaris Hayman (Mrs. Cowley), Martin Wyldeck (Cowley), Patrick Mower (Colin McGruder), Nicholas Smith (Simpkins)

First aired: Oct/20/1975
Writer: Trevor Preston

First aired: Oct/27/1975
Writer: Trevor Preston
Director: Douglas Camfield
Guest star: Alun Armstrong (Peter Jenner), John Woodnutt (Dr. Clare), Brian McDermott (Ken Algar), John Challis (Skef Warren), Ray Barron (Bobby Haigh), Michael Ripper (Herbie Mew)

First aired: Nov/03/1975
Director: Ted Childs
Guest star: Roger Sloman (Cosby), George Layton (Ray Stackpole), Lynda Bellingham (Nancy King), Frederick Schiller (Austrian Tourist), Leslie Dwyer (Ted Greenhead), Frederick Jaeger (Goldman), Patrick Mower (Colin McGruder)

First aired: Nov/10/1975
Director: Tom Clegg
Guest star: John Gleeson (The Flying Squad Officer), Henry Woolf (Jimmy Dancer), Peter Halliday (Chief Insp. Gordon), Russell Hunter (Popeye), Michael Coles (Maynard)

First aired: Nov/17/1975

First aired: Nov/24/1975
Director: Douglas Camfield
Guest star: David Masterman (Greg), Mike Lewin (Johnson), Stuart McGugan (Hicks), Harriet Philpin (Julia Coulson), Hubert Rees (Reginald Dowland), Sally Lahee (Bank Clerk), Christopher Crooks (Frank Gough), Dean Harris (Jimmy Wands), Iris Russell (Miss Jennifer Lewis), Barrie Cookson (Assistant Commissioner), Nick Brimble (Det. Con. Gerry Burtonshaw), Ronald Lacey (Barry Monk), Olive McFarland (Mrs. Dowland), Nicholas McArdle (Inspector Wilson)

First aired: Sep/06/1976

First aired: Sep/13/1976
Writer: Tony Hoare
Director: Terry Green

First aired: Sep/20/1976
Director: Tom Clegg
Guest star: Valentine Palmer (Carew), Ian Thompson (Det. Insp. Thompson), Laurence Harrington (Lawyer), Jim McManus (Ollie Parsons), Frederick Treves (Beemax), Morris Perry (Det. Chief Supt. Maynon), Ric Felgate (McFarland), Nadim Sawalha (Capt. Shebbeq)

First aired: Sep/27/1976
Guest star: George Cole (Dennis Longfield), Nina Thomas (Caroline), John Hurt (Tony Grey)

First aired: Oct/04/1976

First aired: Oct/11/1976
Guest star: David Miller (Gordon Hudson), Harry Fielder (Shopkeeper)

First aired: Nov/08/1976
Guest star: Sue Lloyd (Arleen Baker), Willoughby Goddard (Daniel Kitter)

First aired: Oct/25/1976
Writer: Trevor Preston

First aired: Nov/22/1976

First aired: Nov/29/1976

First aired: Dec/06/1976

First aired: Dec/13/1976

First aired: Dec/20/1976
Guest star: Roger Brierley (Psychiatrist), Keith James (Lakin), Brendan Price (Ian Pinder)

First aired: Sep/07/1978
Writer: Trevor Preston
Guest star: Richard Adams (Ray)

First aired: Sep/14/1978
Director: Graham Baker
Guest star: Benjamin Whitrow (Det. Chief Supt. Braithwaite), Miranda Forbes (Maggie's Mother), Janet Ellis (Susie, Marge's Friend)

First aired: Sep/21/1978
Director: Tom Clegg
Guest star: Oliver Smith (Lorry Driver), Derek Deadman (Curry), Benjamin Whitrow (Det. Chief Supt. Braithwaite), John Rolfe (Det. Chief Supt. Brookfield), Patrick Malahide (Mason)

First aired: Sep/28/1978

First aired: Oct/05/1978

First aired: Oct/12/1978
Writer: Trevor Preston

First aired: Oct/19/1978
Writer: Trevor Preston

First aired: Oct/26/1978
Writer: Tony Hoare
Director: Mike Vardy
Guest star: Nick Brimble (Det. Con. Gerry Burtonshaw), Colin Jeavons (Leonard Gold), Ian Collier (Logan), Donald Burton (Chief Superintendent Grey), Colin McCormack (David Wade), Richard Hampton (Barnes), Tony Steedman (John Masterson), Richard Wilson (D.C.I. Anderson)

First aired: Nov/02/1978
Guest star: Stuart Blake (Doctor), Geoffrey Palmer (Cmdr. Watson), Joss Ackland (Alan Ember), Brian Capron (Colin)

First aired: Nov/09/1978
Writer: Tony Hoare
Director: Christopher Menaul
Guest star: Neil Hallett (John Morris), Rachel Davies (Tina Adams)

First aired: Nov/23/1978
Writer: Ted Childs, Donald Churchill
Director: Mike Vardy
Guest star: Anthony Smee (Army Lieutenant), Martyn Whitby (SPG Inspector), Barbara Grant (Neighbour), Ernie Wise (Himself), Eric Morecambe (Himself), Paul Freeman (1st Detective), John Fielding (Reporter), Jean Boht (Woman Neighbour), Simon Browne (Gene), Edward Hardwicke (Bellcourt), Nicholas McArdle (Tridgwell), Jack Klaff (Al Krim), Caroline Blakiston (Hildegarde), Miles Anderson (Hawkins), Edward de Souza (Busby), George Mikell (Danilov), Jenny Quayle (Wendy), George Irving (2nd Detective), John Moreno (Doad)

First aired: Nov/30/1978
Writer: Ted Childs
Director: Peter Smith
Guest star: Donald Morley (Delacroix), Benjamin Whitrow (Det. Chief. Supt. Braithwaite), Sandra Payne (Meryl), James Warrior (Det. Con. Jellyneck), Meg Davies (Christobel Delgado)

First aired: Dec/14/1978

First aired: Dec/28/1978