The wife of one of Cannon's Army buddies calls him in to determine why her soldier husband is suddenly acting strange.

A millionnaire's son does the death-defying Acapulco Dive and dies, apparently killing himself. His father believe that his son was driven to kill himself by someone.

Cannon is hired to clear a football player of the murder of his girlfriend who he claims he didn't kill

A former mob hitman hires Cannon to determine why someone is sending a killer after him.

Cannon investigates the death of a scientist who was apparently murdered by an intelligence from outer space.

There's more to the kidnapping of a millionaire's son then meets the eye.

A young Korean officer who believes Cannon betrayed his father frames the PI for murder.

Cannon is hired to find a missing publisher, unaware that the people who hired him are the reason the publisher went missing.

A crusading publisher is framed for murder to keep him from interfering with organized crime.

A young boy, Johnny, witnesses a Middle Eastern prince being operated on in an abandoned warehouse, but no one believes him.

A movie star hires Cannon to find her wayward son, who has a serious drug problem and may be dead.

A black female politician is gunned down, and Cannon tries to learn who killed her.

A general hires Cannon to determine if his son killed a cult leader... and no one is happy with the answers, including the cult, which come gunning for the supposed killer.

Cannon teams up with a female undercover officer who was beaten up by a psychotic who played "The Wedding March" while doing it.

The Chinese Tongs apparently target a man for murder, but Cannon discovers that there's more involved.

Cannon goes up against a tough female CEO when one of her executives hires the PI to clear his name.

A friend hires Cannon to bring his dead son's body back from Mexico, but Cannon discovers that it's a lot more complicated than described.

Domestic terrorists give Cannon 72 hours to track down a defecting member... and inject him with slow-acting poison to make their point.

A crooked cop supposedly eight years in the grave comes back and starts killing the officers responsible for his death.

A recording star claims that her friend was beaten, and then she was abducted and dropped off on the side of the road, filled with cocaine. her story doesn't hold together, but Cannon looks into it.

Cannon looks into an old case from his days on the police force, trying to determine if the man he believed was guilty is actually innocent.

A doctor is accused of killing a patient by disregarding their bracelet and giving them the wrong treatment.

Cannon and fellow PI Barnaby Jones end up working the same case but for different clients when a whistleblower is raped and killed.

Part 2 continues on "Barnaby Jones" (S04E01).

Cannon sets out to investigate the deathbed claim of a man who says that he murdered Cannon's wife and child 14 years earlier.