Barnaby uncovers a trail of lies, deceit, and murder as he investigates the death of a real estate investor on the behalf of his grieving daughter - who is convinced it was not accidental.

While investigating the whereabouts of some missing embezzlement money, Barnaby uncovers fraud, blackmail, and a couple of murders committed by a man who's suppose to be dead.

Barnaby is hired to investigate the alleged suicide of a very wealthy woman's husband. What he discovers is another investigator who supplements his income with blackmail, and will murder anyone who gets in his way.

An imprisoned dying man makes a deal with a murderer to take the rap for the man's crimes, just as long as he will financially take care of his wife after he's gone. But when the deal goes sour, Barnaby is hired to see to it that justice is served.

Three otherwise ordinary guys who carpool together plan a $335,000 heist, but when things go horribly wrong and it turns into a case of murder, Barnaby Jones gets involved.

A guy who works for a bail bonds woman who's a friend of Barnaby's, is coerced by a man who wants to be bailed out so that he could sell some stuff he has and says he'll cut him in. But tries to pull a fast one but the guy finds the man and kills him and takes the loot. He gets rid of the body. The bonds woman asks Barnaby to find the man or she'll forfeit the bond. He tries to sell the stuff but the man's partner whom he also cheated wants his share.

A man who works for an insurance company is killed when a guy attacks him and throws him down an elevator. The police think it's an accident but the man's wife doesn't think so, so she hires Barnaby to investigate. What they don't is that the man was providing a group of thieves with info on various clients so they can rob them. And the man who killed him is the leader who just got out of prison. It seems that the man was getting together with the leader's girl who's also a member of the gang. And there's dissension in the gang when the leader insists on restoring the...

An insurance company hires Barnaby to investigate the death of the owner of a motor corporation who drove his motorcycle off a cliff during testing. After Jones hears rumors of an affair, and then learns of another mysterious motorcyclist in the area that day, he suspects it was no accident.

A singer who hit it big goes back to her hometown to perform. She runs into her ex who is now dating someone else, and the girl he is dating is very insecure when the singer is with him. She confronts the singer, and the singer hits her knocking her out. Her manager who likes the singer tells her that she's dead but in actuality is not. He tells the singer to leave and he'll handle it, he wakes her up and he gets her out before anyone sees her. They talk and he wants her to pretend to be dead. The manager likes the singer and if can make the singer think she killed ...

A jewel thief's carefully laid out plans to steal a diamond worth one million dollars are ruined when he is forced to kill a security guard who shows up during the heist. Barnaby is once again called to investigate by the insuring company.

Barnaby is hired to look into the mysterious death of a man who was planning to sell his ranch and move. It seems he was planning to withdraw his money from the bank. Meanwhile the banker seems to be dipping into the accounts and the man's plans threaten to expose her so the banker and her boyfriend killed him.

A struggle for a gun between three men leads to a deadly shooting. Two of the men involved make it look like the third committed suicide, but their cover up leads to a web of deceit and a cold blooded murder mystery for Barnaby to unravel.

A contract killer after falling for a girl decides to quit. But his brother who idolizes him wishes he would go on. Barnaby is hired by the girl's family to find her. Eventually he asks about her boyfriend, the killer. When his brother learns of Barnaby, he tries to take care of it. But things get out of hand.

An arrogant football player decides to have a fling. But when he gets rough with the girl, she tries to leave. They get into a scuffle that ends with her dead. He tries to cover it up. Barnaby is hired by the girl's husband to find out what happened. His team mate who knows about it, tries to tell him to come forward.

The grieving sister of a wealthy business tycoon, and expert sailor, hires Barnaby to investigate his so-called accidental death aboard his boat at sea.

A man was given a phony subpoena to appear in court so that he could be framed for the assassination of a judge who had been nominated for a seat on the Supreme Court. Barnaby takes up the case after the man proclaims his innocence-and gives him $5,000..

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After getting caught up in their own game, a couple of con artists running a scheme to sell $250,000 in non-existent copper to manufacturer's have to resort to murder-and Barnaby is there to investigate.

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Cannon and Barnaby Jones investigate the death of a young woman who was about to expose the illegal activities of the large corporation she was working for. The crossover starts on Cannon S05E02 The Deadly Conspiracy (I).