Season 4 Episodes
1. The Set Up
Theo Gaunt (Maurice Denham) hires an ex-con to steal his wife's jewelry.
2. Incident at Midnight
A drug addict (Martin Milner) tries to crack a dope ring
3. The £20,000 Kiss
An up and coming politician is caught in a compromising photograph taken by a maid, who turns out to be part of a sophisticated blackmail ring. When the girl is found murdered, he holds an incriminating old dueling pistol.
4. On the Run
Model prisoner Frank Stewart, convicted for burgulary, escapes from prison with the help of Jock Mackay, an associates for his boss Wally Lucas, who plans to track down Stewart to know the location of stolen bonds.
5. Return to Sender
A swindling tycoon (Nigel Davenport) tries to avoid jail by discrediting the prosecutor.
6. The Double
A man (Alan MacNaughton) suffering from amnesia, false memory and paralysis of his legs returns to England with his nurse (Jeanette Sterke). He believes he killed his partner 6 months earlier, but the body was never found. They are to stay with her sister (Jane Griffiths) while she continues to try to overcome his handicaps. They are spotted at the airport by the secretary (Anne Lawson) of Basil Henson, who has kept tabs on his movements. Sterke gets engaged in following the trail, which begins with a solicitor and leads to Henson who is a successful stock broker with the same name as MacNaughton's partner.
7. To Have and To Hold
A CID detective is lured into a plot by girl who first pretends to fall in love with him, then that she's been killed and is now actually a heretofore unknown twin sister, and ultimately a murderous betrayal.
8. The Partner
Shady dealings and a duplicitious accountant put studio head Wayne Douglas and his new Oriental actress Lin in peril. Starring Yoko Tani, Guy Doleman, Ewan Roberts, Mark Eden and Anthony Booth. Directed by Garard Glaister.
9. Accidental Death
Returning from a party the adopted daughter of Colonel Paxton and her boyfriend are surprised by an intruder. The colonel, however, instantly remembers him as a war comrade. Starring John Carson, Jacqueline Ellis, Derrick Sherwin and Richard Vernon. Directed by Geoffrey Nethercott.
10. Five to One
Alan Roper is a smart young man on the fringes of big time crime. With his partner-in-crime, Lea, and his girlfriend Pat, he's planning his biggest job yet - the robbery of a betting shop owned by a man he hates. Starring Lee Montague, Ingrid Hafner, John Thaw and Brian McDermott. Directed by Gordon Flemyng.
11. The Rivals
A Swedish millionaire (Jack Gwillin) thinks the world of his daughter---and it may cost that much to get her back from kidnappers.
12. Ricochet
Solicitor Alan Phipps formulates a plan to blackmail his wealthy and unfaithful wife, Yvonne, and at the same time, get revenge against her boyfriend, John Brodie, by setting him up to appear that he is the blackmailer and for Yvonne to kill him. But Brodie, anticipating this predictament, has a hidden agenda behind all this to get the last laugh at Phipps.