1958 • 21 Episodes
January 2, 1958
A man hires Diamond to investigate an outer space society which he suspects is out to bilk his rich uncle since they have talked him into leaving the society $100,000 in his will.
January 9, 1958
Diamond is hired to protect a lady politician whose supporters fear she may be kidnapped by the opposition.
January 16, 1958
Diamond is hired to track down a gang of safe crackers and recover the money that they stole.
January 23, 1958
A man convicted of a jewel theft years earlier still claims to be innocent even though the jewels start to show up on the black market as soon as he is released from prison.
January 30, 1958
Diamond is hired to investigate a fire in a fur shop which killed an accountant who was working there.
February 6, 1958
A veteran journalist and a recovering alcoholic join forces in order to get a story on a protection racket.
February 13, 1958
Diamond uncovers a protection racket when he decides to learn why a pair of his Chinese friends unexpectedly call off their upcoming wedding.
February 20, 1958
A cowboy performing in a Madison Square garden rodeo comes to Diamond for help after he discovers his saddle strap cut and suspects that someone is trying to kill him.
February 27, 1958
While taking a break from an all night drive at a roadside cafe, Diamond meets a woman who gives him a look convincing him she is afraid of something.
March 6, 1958
Diamond is beaten and rendered unconscious by a man he suspects is an art thief. When he recovers he discovers that a beautiful woman has subdued his attacker.
March 13, 1958
Diamond is hired by a woman to clear her son of charges of murder, since he is a member of a gang which robbed a liquor store and killed the sales clerk.
March 27, 1958
A jewelry store owner comes to Diamond for help when one of his employees refuses to return gems he had been assigned to clean unless he is given a large cash stipend.
April 10, 1958
Diamond goes under cover as a truck driver in order to investigate a truck hijacking in which the driver was killed.
April 17, 1958
Diamond sets out to find the man who is trying to kill him and who failed in his last attempt, leaving an innocent bystander dead.
April 24, 1958
Diamond fails in his efforts to protect a shady night club owner who believes that someone is out to kill him.
May 1, 1958
While investigating the death of an investment counselor, Diamond learns that a letter has recently been stolen from the deceased's attorney.
May 8, 1958
Diamond is hired by a singer who finds himself being threatened by extortionists.
May 22, 1958
Diamond and his client are kidnapped by gangsters who threaten to kill both of them unless Diamond reveals the location of valuable paintings from another case.
May 29, 1958
Diamond is called upon to investigate the murder of a film producer and upon arriving at the scene of the crime learns that the police have not been notified of the man's death.
June 12, 1958
After a policeman friend of Diamond's is killed while on patrol, Diamond decides to do an investigation of his own to insure that the killer is brought to justice.
June 26, 1958
Diamond uncovers a narcotics smuggling operation while investigating the murder of an art restorer who was killed in his workshop.