A Princely Sum
Episode: 1x01 | Airdate: May 2, 1959
The opener finds Markham worrying about an assassination attempt on Middle East's King Hassem on his arrival in the U.S.
Episode: 1x01 | Airdate: May 2, 1959
The opener finds Markham worrying about an assassination attempt on Middle East's King Hassem on his arrival in the U.S.
Episode: 1x02 | Airdate: May 9, 1959
Markham goes after art thieves who murdered a museum guard.
Episode: 1x03 | Airdate: May 16, 1959
Private Investigator Markham goes to Paris to check on a lovely Spanish lady. Louise is the lady in question and she's very fetching. Markham is trying to locate a fortune stolen from a small country.
Episode: 1x04 | Airdate: May 23, 1959
Markham has to unmask a bogus medium who's intent on deceiving an old lady.
Episode: 1x05 | Airdate: May 30, 1959
Markham's client: a Canadian industrialist accused of assault. The investigator flies to Quebec to clear the executive accused of beating up a pretty secretary.
Episode: 1x06 | Airdate: Jun 6, 1959
An ex-lawyer suspects that killers are trailing his daughter---to get back at him.
Episode: 1x07 | Airdate: Jun 13, 1959
A crank's bombing of empty buildings finally kills a man.
Episode: 1x08 | Airdate: Jun 20, 1959
Markham is hired by an insurance company to probe a series of gem thefts, but before he can get a clue, his best lead is slain.
Episode: 1x09 | Airdate: Jun 27, 1959
Roy Markham is hired to reunite a young girl with her father, on adventures of international investigator "Markham." Unbeknownst, he is followed by two killers who know they will be led to their target.
Episode: 1x10 | Airdate: Jul 4, 1959
Markham is hired by a bank to investigate the fatal shooting of a top client.
Episode: 1x11 | Airdate: Jul 11, 1959
Markham is drawn into a gem smuggling scheme when a nightclub performer comes to him for help escape a beatnik killer.
Episode: 1x12 | Airdate: Jul 18, 1959
Markham invesigates the mysterious disappearance of a playboy whose wife believes she may have shot him while engaged in a strange duel with him.
Episode: 1x13 | Airdate: Jul 25, 1959
Counterfeit stamps are flooding the London rare-stamp market.
Episode: 1x14 | Airdate: Aug 1, 1959
A woman thinks her husband ran off with another woman and asks Markham to find him.
Episode: 1x15 | Airdate: Aug 8, 1959
A Mexican boy is charged with killing an anthropologist.
Episode: 1x16 | Airdate: Aug 15, 1959
On vacation in Guatemala, Markham is asked to find a woman's vanished husband.
Episode: 1x17 | Airdate: Aug 22, 1959
Markham is called to Hollywood when a multi-million dollar studio is being sabotaged.
Episode: 1x18 | Airdate: Aug 29, 1959
Markham goes to Portugal to investigate the death of an American beauty but meets a friend on the trail of a narcotics ring. Sister of beauty killed in mysterious explosion gives sleuth address book full of suspects.
Episode: 1x19 | Airdate: Sep 19, 1959
Actress hires Markham to protect her from revengeful actor.
Episode: 1x20 | Airdate: Sep 26, 1959
An English girl with a large Swiss bank account is trying to keep her finances secret from her government.
Episode: 1x21 | Airdate: Oct 3, 1959
Markham's nephew asks his uncle's protection when he visits an eccentric family.
Episode: 1x22 | Airdate: Oct 10, 1959
Kitty Brady is sure the death of her trucker father was no accident.
Episode: 1x23 | Airdate: Oct 17, 1959
Roy Markham finds himself on the trail of his strangest and dealiest quarry- a ship's first mate who has become infected with a deadly South Seas virus that threatens a plague.
Episode: 1x24 | Airdate: Oct 31, 1959
Charged with murder: the victim's son.
Episode: 1x25 | Airdate: Nov 7, 1959
An old friend asks Markham to help clear a woman suspected of murder.
Episode: 1x26 | Airdate: Nov 14, 1959
Markham uses a fake jewel theft to smoke out a vital witness in East Africa.
Episode: 1x27 | Airdate: Nov 21, 1959
The plot concerns what happens after an investigator finds a woman chloroformed in his apartment. When Markham returns to his apartment he finds a woman chloroformed but before he can summon aid, three gun-toting kidnapers appear from another room to announce that Markham's apartment will be used for a hideout until ransom is paid.
Episode: 1x28 | Airdate: Dec 5, 1959
Markham goes to Hawaii at the request of an old Princeton classmate who thinks his wife is trying to murder him, but after he meets the beautiful woman he isn't sure who the intended victim is.
Episode: 1x29 | Airdate: Dec 19, 1959
Markham becomes a target for an assassin when he is hired to impersonate mysterious international financier Max Bossman—whose enemies are numerous the world over— but Markham finds some pleasure in the assignment because he travels across Europe with Bossman's wife, Friday.
Episode: 1x30 | Airdate: Oct 9, 1960
An ex-con hires Markham to find his daughter---whom he's never seen.
Episode: 1x31 | Airdate: Jan 16, 1960
Two crooked cops pursue a small boy who saw them kill a gangster.
Episode: 1x32 | Airdate: Jan 23, 1960
Markham flies to Honolulu to investigate a woman's claim that her husband is trying to kill her.
Episode: 2x01 | Airdate: Jan 28, 1960
Markham gets wounded by an assailant and the trail of the suspected gunman leads to a doctor and his nurse who is trying to protect her ex-convict husband.
Episode: 2x02 | Airdate: Feb 4, 1960
On a train trip to Florida, Markham is confronted by a girl who claims her life is in danger.
Episode: 2x03 | Airdate: Feb 11, 1960
A wealthy couple fear that their daughter may try to kill herself.
Episode: 2x04 | Airdate: Feb 25, 1960
Roy Markham protects a lonely girl from becoming involved in a murder plot.
Episode: 2x05 | Airdate: Mar 3, 1960
A man goes berserk and kills his wife when he becomes suspicious of her meetings with his old friend Markham.
Episode: 2x06 | Airdate: Mar 10, 1960
Private investigator Markham goes aboard a Mediterranean steamer to track down the thief who stole a priceless ancient scroll from a Lebanese monastery.
Episode: 2x07 | Airdate: Mar 24, 1960
When a house is deemed haunted, Markham is hired to evict the ghost.
Episode: 2x08 | Airdate: Mar 31, 1960
Markham learns the secrets of historic Barkley Manor and then shocks its residents.
Episode: 2x09 | Airdate: Apr 7, 1960
Markham struggles against a fire in a cottage when he searches for a missing artist.
Episode: 2x10 | Airdate: Apr 14, 1960
Markham has a wild reunion with his fraternity brothers: one's planning suicide, another's planning murder.
Episode: 2x11 | Airdate: Apr 20, 1960
There's no mystery to Markham tonight. We see Jerry Clive strafing the nitro trucks, and pretty quickly Markham realizes that his old wartime buddy is the man responsible. The problem for Markham is to stop Clive, hold off a couple of predatory females and bring peace to our time.
Episode: 2x12 | Airdate: Apr 28, 1960
A young rival challenges a veteran waterfront boss.
Episode: 2x13 | Airdate: May 5, 1960
After witnessing a gangland "execution," a woman flees to Mexico.
Episode: 2x14 | Airdate: May 12, 1960
A British writer nominated for the Nobel Prize won't receive it---because he can't be found.
Episode: 2x15 | Airdate: May 26, 1960
DA Jason Boon's daughter has been kidnaped to prevent his pursuing a case against a syndicate boss.
Episode: 2x16 | Airdate: Jun 2, 1960
Markham may have trouble finding a vanished American tourist: he looks just like a deported gangster.
Episode: 2x17 | Airdate: Jun 9, 1960
A rash of murders seems to be the work of one man.
Episode: 2x18 | Airdate: Jun 16, 1960
Carla Zanalla is the femme fatale of an escort bureau in Rome who thinks Roy Markham can fit into her money-making scheme. Markham decides he must disguise himself as a dapper gigolo in order to discover the murderer of an old friend, Sam Roth.
Episode: 2x19 | Airdate: Jun 30, 1960
Markham's after the person who stole a sick child's dog.
Episode: 2x20 | Airdate: Jul 7, 1960
A best-selling novel pictures Markham as he is known by only one person---a dead man.
Episode: 2x21 | Airdate: Jul 21, 1960
A blackmailer outwits Markham on top of a New York apartment house.
Episode: 2x22 | Airdate: Aug 4, 1960
Pint-size newsboy Jimmy Standish carries a king-size grudge against his stepfather-to-be.
Episode: 2x23 | Airdate: Aug 11, 1960
Markham has another new one tonight, although you'd never know it if we didn't tell you. The plot is so old and the twists and turns so familiar, you'll insist you've seen it before. It does have the advantage of two pretty girls— Lupe and Elsie — both involved with a nightclub owner who turns up dead.
Episode: 2x24 | Airdate: Aug 18, 1960
Roy Markham meets another crisis with some timely action during a plane crash. Jeff Morrow is a diabetic who thinks his wife and friend Roy have left him to die without insulin after the disaster occurs. But Roy, having browsed through a medical journal one day, knows what to do.
Episode: 2x25 | Airdate: Aug 25, 1960
An actress' husband is convinced his wife is responsible for turning their apartment into shambles.
Episode: 2x26 | Airdate: Sep 1, 1960
A snowman with an ax in its hand is found on the doorstep of a Texas home in the middle of July.
Episode: 2x27 | Airdate: Sep 8, 1960
Markham is assisted by singer Amy and pianist Andy Parker. Both are night-club entertainers, naturally Markham is hired to help Amy and her husband find out where the threatening notes come from. The question: Is Andy Parker just a piano-player or something more sinister?
Episode: 2x28 | Airdate: Sep 22, 1960
Markham goes to France to help an artist determine whether the young girl who has come to be his model is his daughter who disappeared 19 years earlier.