Join or Sign In
Sign in to customize your TV listings
By joining TV Guide, you agree to our Terms of Use and acknowledge the data practices in our Privacy Policy.
59 Episodes 1959 - 1960
Episode 1
Sat, May 2, 195930 mins
Upon hearing that Roy Markham's (Ray Milland's) good friend, Jim Donovan, has been shot and killed on the steps of U.S. Embassy in Cairo, Markham and his partner John Riggs (Simon Scott) fly to Washington to investigate. Markham believes Boris Vascou (Anthony Eustrel), the "Vanishing Assassin," murdered his friend over information Donovan planned to share with the U.S. government about the country where he had been working as an oil engineer: "Kaleda," a small, oil-rich kingdom on the Persian Gulf. Its ruler, Prince Hassan III, is due to arrive in Washington shortly on a diplomatic visit. After crashing the right cocktail party, Roy meets the Prince's emissary, Ramik Sarid (Arnold Moss), and deduces that an assassination is in the works. He guesses it will take place at a riverside home where a beautiful French actress named Renee Compante (Jacqueline Beer) awaits the Prince. With the help of a friendly socialite boater, Diana Rogers (Betsy Jones-Moreland), Markham, Riggs and Sarid waylay Vascou and kill him.
Episode 2
Sat, May 9, 195930 mins
A priceless painting by "van Goff" is stolen from a New York museum and a watchman is killed. The insurance company hires Markham to find it, and a mysterious letter lures him to a town called Santa Maria. Will he find the painting there?
Episode 3
Sat, May 16, 195930 mins
During a revolution in Costa Dora, a casino magnate was murdered by a crime syndicate because they thought he had half a million dollars in cash. Afterwards, his daughter attracts the attention of the U.S. Bureau of Internal Revenue by spending money lavishly in Paris. Markham is approached by the Bureau to investigate and find the money.
Episode 4
Sat, May 23, 195930 mins
A young woman contacts Markham after moving in with an elderly aunt she hadn't seen since childhood. The niece fears that the old lady is being robbed by an unscrupulous medium whose séances bring back the spirit of the woman's long-dead son. Markham attends one of the sittings and immediately pegs the spiritualist as a phony; he also finds the aunt to be a little too theatrical to be a sheltered old hermit.
Episode 5
Sat, May 30, 195930 mins
A modest clerk working for an international mining company is stalked and beaten on the streets of Montreal. She accuses one of the executives in her office of doing it. Did he?
Episode 6
Sat, Jun 6, 195930 mins
A consigliere has retired from the mob -- which you can't do -- and has been in hiding for years. Consequently, he has missed out on his daughter growing up. Now, he wants to see her one last time before his former clients catch up to him.
Episode 7
Sat, Jun 13, 195930 mins
Markham must find out what connects three crank bombings?
Episode 8
Sat, Jun 20, 195930 mins
Markham is engaged by an insurance firm to investigate a series of jewel robberies. The thieves appear to be following directions given in a newspaper gossip column, which gives Markham a solid lead until his potential informant falls victim to the criminals.
Episode 9
Sat, Jun 27, 195930 mins
A beautiful woman comes to Markham's hotel room at night toting a gun and offering him a wad of cash to prove she didn't kill a man. Next day, Markham is arrested for murder. To prove his innocence, he will have to find the real killer.
Episode 10
Sat, Jul 4, 195930 mins
Nicky Schueller, a supposedly successful financier, kills himself while hosting a party in his home the night before his wedding. His employer hires Markham to find the money he embezzled.
Episode 11
Sat, Jul 11, 195930 mins
Markham is asked to protect a young girl.

Episode 12
Sat, Jul 18, 195930 mins
A young wife is cleared of foul play in the disappearance of her abusive husband. But what happened to the husband? And why are objects suddenly disappearing from the house?
Episode 13
Mon, Jul 27, 195930 mins
Several months after an expert stamp counterfeiter is found dead, counterfeit stamps are still being found that resemble his work. Also, two men are found murdered at his former boarding house.
Episode 14
Sat, Aug 1, 195930 mins
A refined gentleman meets a young blonde on an NYC street when they suddenly witness a murder. The gentleman is also quickly dispatched while the blonde flees. The gentleman's wife calls in Markham to find her missing husband.
Episode 15
Sat, Aug 8, 195930 mins
Roy travels to Mexico to help an old Priest friend who's boy is falsely charged with murder.
Episode 16
Mon, Aug 17, 195930 mins
While traveling in Central America, Markham helps a frantic tourist whose husband disappeared after climbing a wall to take pictures.
Episode 17
Sat, Aug 22, 195930 mins
Markham goes undercover as a carpenter at a Hollywood studio to catch a saboteur.
Episode 18
Sat, Aug 29, 195930 mins
Markham travels to Portugal to investigate the death of a young American woman.
Episode 19
Sat, Sep 19, 195930 mins
Markham is called upon when a famous actress is being stalked by an unknown man. She believes the stalker is her former protege and lover, but Markham will have to figure out if this is true.
Episode 20
30 mins
A young English girl has a large account in a Swiss bank and is anxious to withdraw the money without letting the British treasury department know about it.
Episode 21
Sat, Oct 3, 195930 mins
David Markham, a student at MIT is invited by a school friend to visit his eccentric uncle living in Louisiana. He accepts the invitation and then invites his uncle to accompany him.
Episode 22
Sat, Oct 10, 195930 mins
Kitty Brady, daughter of a trucker killed in an accident, tells Markham she thinks her father was murdered. Markham takes a job as a truck driver and recognizes one of the firm's mechanics as an old-time safecracker.
Episode 23
Sat, Oct 17, 195930 mins
An unknown disease infects the crew of a research ship.
Episode 24
Sat, Oct 31, 195930 mins
A wealthy shipping tycoon kills his young lover in a jealous rage. He uses his power to frame one of the victim's young lovers, but a wrench is thrown in his plan when the police suspect his son, who is yet another of the woman's lovers.
Episode 25
Sat, Nov 7, 195930 mins
A law school friend asks Roy Markham to quash rumors that his lady friend, the Bel-Air resident, killed her husband. The coroner ruled her husband's death a suicide. Roy is able to warn his friend that it was murder.
Episode 26
Sat, Nov 14, 195930 mins
Markham goes undercover as a diamond thief to retrieve a beautiful woman back to the U.S. from Mozambique so that she can testify against her mobster boyfriend.
Episode 27
Sat, Nov 21, 195930 mins
Markham comes home to find an unconscious, rich heiress and her three armed kidnappers. The crooks demand $500,000 for her return and know that her father will contact Markham for help since he'd worked for the family before. Knowing that they'll be killed after the ransom is paid, Roy schemes to overtake their captors with a well-timed explosion.

Episode 28
Sat, Dec 5, 195930 mins
Markham is enjoying a Hawaiian vacation on Oahu when he meets up with an old friend who believes his young wife is trying to kill him.
Episode 29
Sat, Dec 19, 195930 mins
A wealthy man hires Markham to protect him from an assassin by impersonating him. This also means Markham gets to escort his wife Friday, which proves to be an endless source of temptation.
Episode 30
Sat, Jan 9, 196030 mins
Markham is hired by an ex-convict to help him find his daughter, who he has never seen. All he knows is that the girl is living in a New York City slum.
Episode 31
Sat, Jan 16, 196030 mins
A young boy is the only witness to a mob hit, and now it is up to Markham to save the boy and his mother from the thugs.
Episode 32
Sat, Jan 23, 196030 mins
Markham flies to Honolulu to help Mary Cunningham, who lives in fear of her husband.
Episode 33
Thu, Jan 28, 196030 mins
Markham is attacked and wounded by an unknown assailant and he begins a search to discover who tried to kill him.
Episode 34
Thu, Feb 4, 196030 mins
Roy Markham anticipates a peaceful vacation in Florida, but a girl disturbs his tranquility and claims her life is in danger.
Episode 35
Thu, Feb 11, 196030 mins
A wealthy family hires Markham to watch their young daughter who they fear will either kill herself or have herself killed.
Episode 36
Thu, Feb 25, 196030 mins
Patricia Donahue plays a small-town girl working in the big city who falls for a married man with murder on his mind.
Episode 37
Thu, Mar 3, 196030 mins
Episode 38
Thu, Mar 10, 196030 mins
Markham is aboard The Arab Queen en route to Athens where he must figure out who is carrying a priceless scroll.
Episode 39
Thu, Mar 24, 196030 mins
Markham is hired to remove ghosts from a haunted house.
Episode 40
Thu, Apr 7, 196030 mins
Markham is in Paris looking for an old friend's missing daughter. At an art museum, he is tipped off that she is holed up on the Normandy coast with an artist.
Episode 41
Thu, Apr 14, 196030 mins
Looking forward to a fraternity reunion with his old fellow graduates, Markham discovers one of the brothers is suicidal and another has murder on his mind.
Episode 42
Thu, Apr 21, 196030 mins
Markham is called to the Middle East by an old buddy who is in trouble over an oil pipeline, however he can not decide if the man is trying to destroy it or protect it.
Episode 43
Thu, Apr 28, 196030 mins
A waterfront boss is marked for death by a young competitor.
Episode 44
Thu, May 5, 196030 mins
Markham receives a long distance call from Sylvia Lennard informing him she witnessed a gangland murder and has fled to Mexico to escape the killers.
Episode 45
Thu, May 12, 196030 mins
Markham investigates the mysterious disappearance of a distinguished author who was a likely candidate for the Nobel Prize.
Episode 46
Thu, May 26, 196030 mins
A D.A. is forced to drop his case against a known mobster when his daughter is kidnapped. The D.A. calls on Markham to find his daughter.
Episode 47
Thu, Jun 2, 196030 mins
An American tourist in Europe is heard to boast of his resemblance to a notorious criminal who's been deported from the United States. Not long after, the tourist mysteriously disappears.
Episode 48
Thu, Jun 9, 196030 mins
Someone is strangling rookie cops in an unnamed city. To quell accusations of inside corruption, independent investigator Roy Markham is brought in to solve the murders.
Episode 49
Thu, Jun 16, 196030 mins
Markham arrives in Rome to visit a friend only to find him murdered. To solve the murder, he infiltrates an escort service.
Episode 50
Thu, Jun 30, 196030 mins
Eight-year-old Judy Frost hasn't spoken a word or walked a step since her father died in a car accident. A poodle named "Sampson" is coaxing her out of her state of shock. But, one night, Sampson runs off. Can Markham find him?
Episode 51
Thu, Jul 7, 196030 mins
Episode 52
Thu, Jul 21, 196030 mins
Episode 53
Thu, Aug 4, 196030 mins
Markham's newspaper boy, Jimmy Standish, wants to prevent his mother from marrying a man named Guy Franklin. But what's the best way? Introduce her to a more desirable man -- Roy Markham, of course.
Episode 54
Thu, Aug 11, 196030 mins
Markham can easily see that the little country mouse whom the police have arrested for the murder of a night club owner could not possibly have done so. But he'll need to find the real killer himself since the police obviously won't.
Episode 55
Thu, Aug 18, 196030 mins
Episode 56
Thu, Aug 25, 196030 mins
Episode 57
Thu, Sep 1, 196030 mins
Episode 58
Thu, Sep 8, 196030 mins
Amy Rae, a famous singer, is receiving threatening notes, and her husband Tony goes to Roy Markham to find out who's sending them. Is his wife in danger?
Episode 59
Thu, Sep 15, 196030 mins