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24 Episodes 1973 - 1974
Episode 1
Wed, Sep 12, 1973100 mins
Cannon travels to the quiet, remote town of Mercer, California to help his friend Ian Kirk who is suspected of murdering his rich wife and her paramour Wade Gibson. Actor David Janssen plays Ian, a writer who met his wife Irene in Africa, got married and settled in her hometown. But Ian's considered an outsider who married for money. No one in town wants to believe that the local girl is responsible for her own death and that of her golden boy lover. The town would rather believe that the outcast is guilty of murdering his wife, whether or not he actually did it. As Cannon tries to prove his friend's innocence, he gets help from the mayor (actress Anne Baxter) but is stymied in his efforts by the sheriff's office. Several other viable suspects present themselves, people who had reason to hate Wade, including his stepfather and the sheriff's daughter.

Episode 2
Wed, Sep 19, 197360 mins
After swerving down a mountain road for several miles, Walter Shaw drives his Jaguar sedan into a ravine and is killed. By the terms of his will, Cannon is hired to determine if one of his beneficiaries was responsible.

Episode 3
Wed, Sep 26, 197360 mins
Cannon is hired to investigate two fatal dog attacks on former Vietnam combat unit members, and to stop another attack.

Episode 4
Wed, Oct 3, 197360 mins
Cannon turns down a client, and when she is killed in her house shortly after his visit, he is drawn into both her murder investigation and the reason she called him.

Episode 5
Wed, Oct 10, 197360 mins
Cannon is hired by a woman who was slipped a mickey at a bar and then framed for murder.

Episode 6
Wed, Oct 17, 197360 mins
Cannon is hired by an insurance company to investigate the disappearance, while on final approach at a small Utah airstrip, of a twin-engine plane that was carrying $3 million of negotiable bonds.

Episode 7
Wed, Oct 24, 197360 mins
A convicted murderer escapes from the state hospital for the criminally insane, and Cannon is hired to find him before the police do.

Episode 8
Wed, Oct 31, 197360 mins
A businessman's office is burglarized, the safe cracked, and the cash payroll stolen. A former business partner is the obvious suspect, due to his knowledge of the office layout and safe combination, but he has an alibi: he was in prison at the time.

Episode 9
Wed, Nov 7, 197360 mins
A man's model/girlfriend is murdered in her apartment shortly after she tells him she's leaving for a New York job, and he hires Cannon to exonerate him.

Episode 10
Wed, Nov 14, 197360 mins
A man with a limp is intercepted at the airport by police, but he inexplicably escapes while held at gunpoint by a cop, an old police buddy of Cannon's.

Episode 11
Wed, Nov 21, 197360 mins
When a judge's daughter goes missing, he hires Cannon to find her. Cannon talks to her friend who says she was seeing this guy, she doesn't know much about him and gives Cannon some info on him and he learns the man has a record and that he has ties to a man who works for a criminal who is on trial and the judge is the one presiding. Cannon suspects that the criminal abducted his daughter to coerce the judge into dismissing the charges. Cannon tries to find his daughter before the defense makes the motion and he has to decide.

Episode 12
Wed, Nov 28, 197360 mins
A wealthy middle-aged woman's fiancé disappears shortly before their scheduled wedding, and she hires Cannon to find him.

Episode 13
Wed, Dec 5, 197360 mins
A man from a Montana Indian reservation is accused of a murder at the airplane hangar where he works, and the local Indian Center hires Cannon to investigate.
Episode 14
Wed, Dec 12, 197360 mins
A young couple hires Cannon to find out why they are being terrorized by a mysterious stranger. Cannon discovers the answer goes back three years to an unsolved hijacking.

Episode 15
Wed, Dec 19, 197360 mins
Ron Johnson, a prizefighter training for an upcoming bout, punches a heckler in a tavern and kills him. The niece of Ron's trainer hires Cannon to sort out the case.
Episode 16
Wed, Jan 2, 197460 mins
Cannon is hired by General O'Hara to find who killed his brother, Paul Dunbar, several years before.

Episode 17
Wed, Jan 16, 197460 mins
Cannon is hired to handle a nighttime ransom delivery. After being led to various isolated phone booths by the kidnapper, Frank is slugged by the kidnapper's henchman, but he escapes and awakens the next morning in the desert with no memory of who he is or why he is there.
Episode 18
Wed, Feb 6, 197460 mins
A wealthy young woman hires Cannon to find her sister Jennifer, who supposedly drowned five years prior.
Episode 19
Wed, Feb 6, 197460 mins
A young doctor arrives at a prison to examine a prisoner. During the examination the prisoner reaches into the doctor's bag and removes a pistol. Cannon is hired to prove the doctor was an unwitting participant in the attempted jailbreak.

Episode 20
Wed, Feb 13, 197460 mins
Malcolm Lawrence is killed at his African wildlife park by a lion that was supposedly tranquilized, and his wife hires Cannon to find out if he was murdered.

Episode 21
Wed, Feb 20, 197460 mins
Cannon investigates the death of two women who were connected to a faith healer who preaches to his flock that modern medicine is the work of Satan. A young man with a brain tumor may be the next victim.
Episode 22
Wed, Feb 27, 197460 mins
A small-time con man is murdered, and his girlfriend hires Cannon to find the killer.
Episode 23
Wed, Mar 13, 197460 mins
Cannon is called to the West Indies by Jackie Akers to investigate the death of her father, Sir Arnold Masters.

Episode 24
Wed, Mar 20, 197460 mins
While on a vacation at a remote fishing lodge, Cannon is stalked by an escaped serial murderer.
