Season 1[]
| Story | Title | First broadcast |
|---|---|---|
| 001 | Hot Snow* | 7 January 1961 |
| 002 | Brought to Book** | 14 January 1961 |
| 003 | Square Root of Evil** | 21 January 1961 |
| 004 | Nightmare** | 28 January 1961 |
| 005 | Crescent Moon** | 4 February 1961 |
| 006 | Girl on the Trapeze | 11 February 1961 |
| 007 | Diamond Cut Diamond** | 18 February 1961 |
| 008 | The Radioactive Man** | 25 February 1961 |
| 009 | Ashes of Roses** | 4 March 1961 |
| 010 | Hunt the Man Down** | 18 March 1961 |
| 011 | Please Don't Feed the Animals** | 1 April 1961 |
| 012 | Dance with Death** | 15 April 1961 |
| 013 | One for the Mortuary** | 29 April 1961 |
| 014 | The Springers** | 13 May 1961 |
| 015 | The Frighteners | 27 May 1961 |
| 016 | The Yellow Needle** | 10 June 1961 |
| 017 | Death on the Slipway** | 24 June 1961 |
| 018 | Double Danger** | 8 July 1961 |
| 019 | Toy Trap** | 22 July 1961 |
| 020 | Tunnel of Fear | 5 August 1961 |
| 021 | The Far Distant Dead** | 19 August 1961 |
| 022 | Kill the King** | 2 September 1961 |
| 023 | Dead of Winter** | 9 December 1961 |
| 024 | The Deadly Air** | 16 December 1961 |
| 025 | A Change of Bait** | 23 December 1961 |
| 026 | Dragonsfield** | 30 December 1961 |
*Story partially missing
**Story completely missing
Season 2[]
| Story | Title | First broadcast |
|---|---|---|
| 001 | Mr Teddy Bear | 29 September 1962 |
| 002 | Propellant 23 | 6 October 1962 |
| 003 | The Decapod | 13 October 1962 |
| 004 | Bullseye | 20 October 1962 |
| 005 | Mission to Montreal | 27 October 1962 |
| 006 | The Removal Men | 3 November 1962 |
| 007 | The Mauritius Penny | 10 November 1962 |
| 008 | Death of a Great Dane | 17 November 1962 |
| 009 | The Sell-Out | 24 November 1962 |
| 010 | Death on the Rocks | 1 December 1962 |
| 011 | Traitor in Zebra | 8 December 1962 |
| 012 | The Big Thinker | 15 December 1962 |
| 013 | Death Dispatch | 22 December 1962 |
| 014 | Dead on Course | 29 December 1962 |
| 015 | Intercrime | 5 January 1963 |
| 016 | Immortal Clay | 11 January 1963 |
| 017 | Box of Tricks | 18 January 1963 |
| 018 | Warlock | 25 January 1963 |
| 019 | The Golden Eggs | 1 February 1963 |
| 020 | School for Traitors | 8 February 1963 |
| 021 | The White Dwarf | 15 February 1963 |
| 022 | Man in the Mirror | 22 February 1963 |
| 023 | Conspiracy of Silence | 1 March 1963 |
| 024 | A Chorus of Frogs | 9 March 1963 |
| 025 | Six Hands Across a Table | 16 March 1963 |
| 026 | Killer Whale | 23 March 1963 |
Season 3[]
| Story | Title | First broadcast |
|---|---|---|
| 001 | Brief for Murder | 28 September 1963 |
| 002 | The Undertakers | 5 October 1963 |
| 003 | Man with Two Shadows | 12 October 1963 |
| 004 | The Nutshell | 19 October 1963 |
| 005 | Death of a Batman | 26 October 1963 |
| 006 | November Five | 2 November 1963 |
| 007 | The Gilded Cage | 9 November 1963 |
| 008 | Second Sight | 16 November 1963 |
| 009 | The Medicine Men | 23 November 1963 |
| 010 | The Grandeur That Was Rome | 30 November 1963 |
| 011 | The Golden Fleece | 7 December 1963 |
| 012 | Don't Look Behind You | 14 December 1963 |
| 013 | Death a la Carte | 21 December 1963 |
| 014 | Dressed to Kill | 21 December 1963 |
| 015 | The White Elephant | 4 January 1964 |
| 016 | The Little Wonders | 11 January 1964 |
| 017 | The Wringer | 18 January 1964 |
| 018 | Mandrake | 25 January 1964 |
| 019 | The Secrets Broker | 1 February 1964 |
| 020 | Trojan Horse | 8 February 1964 |
| 021 | Build a Better Mousetrap | 15 February 1964 |
| 022 | The Outside-In Man | 22 February 1964 |
| 023 | The Charmers | 29 February 1964 |
| 024 | Concerto | 7 March 1964 |
| 025 | Esprit de Corps | 14 March 1964 |
| 026 | Lobster Quadrille | 21 March 1964 |
Season 4[]
| Story | Title | First broadcast |
|---|---|---|
| 001 | The Town of No Return | 28 September 1965 |
| 002 | The Gravediggers | 5 October 1965 |
| 003 | The Cybernauts | 12 October 1965 |
| 004 | Death at Bargain Prices | 19 October 1965 |
| 005 | Castle De'ath | 26 October 1965 |
| 006 | The Master Minds | 2 November 1965 |
| 007 | The Murder Market | 9 November 1965 |
| 008 | A Surfeit of H2O | 16 November 1965 |
| 009 | The Hour That Never Was | 23 November 1965 |
| 010 | Dial a Deadly Number | 30 November 1965 |
| 011 | Man-Eater of Surrey Green | 7 December 1965 |
| 012 | Two's A Crowd | 14 December 1965 |
| 013 | Too Many Christmas Trees | 21 December 1965 |
| 014 | Silent Dust | 28 December 1965 |
| 015 | Room Without a View | 4 January 1966 |
| 016 | Small Game for Big Hunters | 11 January 1966 |
| 017 | The Girl from AUNTIE | 18 January 1966 |
| 018 | The Thirteenth Hole | 25 January 1966 |
| 019 | Quick Quick Slow Death | 1 February 1966 |
| 020 | The Danger Makers | 8 February 1966 |
| 021 | A Touch of Brimstone | 15 February 1966 |
| 022 | What the Butler Saw | 22 February 1966 |
| 023 | The House That Jack Built | 1 March 1966 |
| 024 | A Sense of History | 8 March 1966 |
| 025 | How to Succeed ....at Murder | 15 March 1966 |
| 026 | Honey for the Prince | 22 March 1966 |
Season 5[]
| Story | Title | First broadcast |
|---|---|---|
| 001 | From Venus with Love | 9 January 1967 |
| 002 | The Fear Merchants | 16 January 1967 |
| 003 | Escape in Time | 23 January 1967 |
| 004 | The See-Through Man | 30 January 1967 |
| 005 | The Bird Who Knew Too Much | 8 February 1967 |
| 006 | The Winged Avenger | 15 February 1967 |
| 007 | The Living Dead | 22 February 1967 |
| 008 | The Hidden Tiger | 1 March 1967 |
| 009 | The Correct Way to Kill | 8 March 1967 |
| 010 | Never, Never Say Die | 15 March 1967 |
| 011 | Epic | 29 March 1967 |
| 012 | The Superlative Seven | 5 April 1967 |
| 013 | A Funny Thing Happened on the Way to the Station | 12 April 1967 |
| 014 | Something Nasty in the Nursery | 21 April 1967 |
| 015 | The Joker | 26 April 1967 |
| 016 | Who's Who ??? | 3 May 1967 |
| 017 | Return of the Cybernauts | 27 September 1967 |
| 018 | Death's Door | 4 October 1967 |
| 019 | The £50,000 Breakfast | 11 October 1967 |
| 020 | Dead Man's Treasure | 18 October 1967 |
| 021 | You Have Just Been Murdered | 25 October 1967 |
| 022 | The Positive Negative Man | 1 November 1967 |
| 023 | Murdersville | 8 November 1967 |
| 024 | Mission... Highly Improbable | 15 November 1967 |
Season 6[]
| Story | Title | First broadcast |
|---|---|---|
| 001 | The Forget-Me-Knot | 25 September 1968 |
| 002 | Game | 2 October 1968 |
| 003 | Super Secret Cypher Snatch | 9 October 1968 |
| 004 | You'll Catch Your Death | 16 October 1968 |
| 005 | Split! | 23 October 1968 |
| 006 | Whoever Shot Poor George Oblique Stroke XR40? | 17 October 1968 |
| 007 | False Witness | 6 November 1968 |
| 008 | All Done with Mirrors | 13 November 1968 |
| 009 | Legacy of Death | 20 November 1968 |
| 010 | Noon Doomsday | 27 November 1968 |
| 011 | Look — (Stop Me If You've Heard This One) — But There Were These Two Fellers... | 4 December 1968 |
| 012 | Have Guns — Will Haggle | 11 December 1968 |
| 013 | They Keep Killing Steed | 18 December 1968 |
| 014 | The Interrogators | 1 January 1969 |
| 015 | The Rotters | 8 January 1969 |
| 016 | Invasion of the Earthmen | 15 January 1969 |
| 017 | Killer | 22 January 1969 |
| 018 | The Morning After | 10 January 1969 |
| 019 | The Curious Case of the Countless Clues | 31 January 1969 |
| 020 | Wish You Were Here | 7 February 1969 |
| 021 | Love All | 14 February 1969 |
| 022 | Stay Tuned | 21 February 1969 |
| 023 | Take Me to Your Leader | 28 February 1969 |
| 024 | Fog | 7 March 1969 |
| 025 | Who Was That Man I Saw You With? | 14 March 1969 |
| 026 | Homicide and Old Lace | 21 March 1969 |
| 027 | Thingumajig | 28 March 1969 |
| 028 | My Wildest Dream | 4 April 1969 |
| 029 | Requiem | 11 April 1969 |
| 030 | Take-Over | 18 April 1969 |
| 031 | Pandora | 4 April 1969 |
| 032 | Get-a-Way! | 27 December 1968 |
| 033 | Bizarre | 17 May 1969 |