Dressed as rodeo clowns, two men rob a rodeo. Cannon is summoned to figure out what's going on, after authorities spend six weeks and come up with nothing.

If it isn't one thing, it's another: a bank manager's mistress is killed, and Cannon finds that's not the end of it.

Unexpected overhead in the trucking business as costly loads are hijacked, and private detectives murdered.

A wry tale with a twang and a twist: was the country singer's plane crash accidental or not?

The son of a gubernatorial candidate is kidnapped.

A deceptive premise: small town citizens harbor a thief on the promise of a cut.

The latest thing is a runaway on the lam.

A perfect frame for a cop.

A murder is witnessed, but the body disappears.

A newly-discovered heir comes home, and finds you can't get blood from a stone, and you can't take it with you.

A closed case gets reopened and leads to further consequences.

A bridegroom's father-in-law suspects him.

Should the weapons manufacturer be judged by its bookeeper?

Cannon helps a supposed political refugee.

A policeman injured in a payroll robbery asks Cannon for help.

A bad day at the track leaves a race car driver with a taste for vengeance.

Mike Tampa, a vineyard owner in northern California, has been the victim of three murder attempts. After the third attempt, his secretary calls on Cannon, secretly, because Mike has stubbornly refused to do anything.

Prison doctor and experimental pressures.

An ex-con is blackmailed into crime.

Larry Bolinger, a charismatic young man, cons the youth of a quiet town into his cult.

A pilot's apparent suicide leads to plans for a military putsch by a predatory flock.

Heat and light: a textile manufacturer is suspected of arson and murder in the death of his wife and the destruction of his factory.

Murder will out; an under-the-counter arms merchant is unmasked.

A young prisoner is forced to do the bidding of a gang boss.

That's about as unlucky as you can get. An assistant DA investigating a car theft ring is framed for his wife's murder.

Keeping your double chin up. A draft dodger winesses a murder on his way to the Yukon.

Cannon goes undercover to find a missing man in a gang. ""Why did the barmaid champagne?""

That was my wife? A lady lawyer gets threatened with death for defending punks who robbed a charity.

Served with a good Victor Hugo sauce, preferably. A girl wounded in a holdup mysteriously refuses to identify the crook.

Alien-smuggling.

There's only one way to deal with that: serve equal portions. Freight shipments are stolen by computer, and Cannon's in the middle of a custody fight.

A farmer is missing and guards have replaced the hands.

A corpse missing with valuable bonds.

Dale and Laura Corey are a happily married couple who own an electronics store; he does a lot of electronic eavesdropping for clients, she was a cop on the force with Cannon a few years back, and hires him because Dale is being threatened after bugging some hotel rooms for the owner.

A murder suspect has a dubious counsel.

Toby Hauser is a compulsive gambler who is $200,000 in debt to Ben Logan (who runs local illegal gaming operations). The bill is due and Hauser has about $5000; they threaten to come after Hauser's wife Cathy if payment isn't made. Cathy, sensing one of them will be hurt, calls in Cannon to help.

A diamond smuggler is drugged to reveal his contraband.

A fellow who intervenes in a fight gets made the fall guy.

A drug dealer's infirm sister takes the rap for a murder.

The co-author of an industrialist's unauthorized biography is murdered.

A case of revenge for a daughter's death at a swinging affair.

A kidnapping case involving the funds of a halfway house and a diabetic lawyer.

A young man is persuaded to extort $50,000 from his father, who turns out to be bankrupt.

One step forward, two steps back as Cannon hunts a mass murderer. Helping to cloud the facts: a police lab technician who's altering the evidence as quickly as it is found.

A serial killer dogs Cannon to put him out of his misery.

A columnist faces contempt charges; Cannon takes the case.

A terrorized woman asks Cannon to find her husband's illegitimate son.

A writer is down for the murder of his wife and her lover, but she's left a contradictory note. ""Who builds stronger than a mason, a shipwright, or a carpenter?""

Cannon begins to see a doubtful situation. ""The houses he makes last till doomsday.""

Cannon's latest client is a dead man via a will.

Former soliders in Vietnam come fearfully to Cannon.

A former syndicate henchman has information wanted by the police and the underworld.

A prima facie murder case involving a lady journalist.

On behalf of an insurance company, Cannon investigates an airplane full of securities.

Cannon's engaged to protect a gang boss from the innocent man he sent up the river.

A payroll robbery has one main suspect who happens to be in prison.

A young model's death leads to many suspects.

A cop feels guilty over a man he injured.

A mob boss on trial has the judge's daughter kidnapped.

A blackmailer's murder brings his Swiss wife to America, and Cannon discovers still more dealings.

Airport drug smugglers frame a worker for murder.

An ex-stewardess is haunted by a hijacking.

A boxer is blackmailed into throwing a fight.

A former general hires former policeman Cannon to investigate his brother's murder.

Cannon suffers amnesia after a ransom drop goes afoul.

A recluse asks Cannon to clear up the presumed death of her sister in a boating accident five years before.

A doctor is accused of helping a prisoner escape.

A big game hunter is killed by a lion supposedly tranquilized.

A con man of God.

The murder of a con man.

A banker's daughter finds his suicide in the Caribbean incredible.

One of Cannon's old busts is a mass murderer, who comes after him on a fishing trip.

A former hooker goes back on the hoof to catch a big wheel.

Not a vocation, more like a calling. Cannon is mistaken for a bishop's assassin.

Cannon reopens the case of an old shooting.

Cannon bodyguards a securities courier.

A general wants Cannon to find the daughter he put up for adoption years before, but there is opposition to the search.

A Cuban exile wants revenge for his brother's death at the hands of police.

A missing person case leads to a cop's death and the pursuit of vengeance.

Cannon deals with an insurance company in a suspicious auto accident.

A psychiatric patient falls in with bad company and is accused of rape and murder.

A Dutch Nazi-hunter is on the trail of an SS man.

Cannon reluctantly takes the case of a disappearing bridegroom, but it's more than it appears.

An ex-POW is in danger from a cowardly officer.

A football player doesn't know his father-in-law is a mob boss.

A girl's suspicious death brings Cannon to Texas.

A torpedo plays dead to testify, but the mob sniffs him out.

Cannon gets set up for a murder charge.

A contractor refuses to pay bribes, and is accused of plotting a political asassination.

A released prisoner disappears en route.

A case of mistaken identity: Cannon is greeted by a stranger, and later almost killed.

A case of police corruption and the death of a reporter.

The wife of an industrialist is missing, and the search is a difficult one.

Cannon's help is sought by a man who went to jail without reason.

Palestinian terroists kidnap an Italian industrialist's daughter to free a jailed comrade.

Cannon searches for a missing girl who's on the lam after witnessing a murder.

History of a Daedalus.

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 continues on Barnaby Jones S04E01 The Deadly Conspiracy (II).

Not what the doctor ordered. He's accused of administering in error, and claims his innocence.

He who cools your vegetables. A man falsely convicted of murder comes under the reluctant eye of Cannon, with more murders and new evidence at his heels.

He who pays the bills. Cannon looks into the curious disappearance of a pop singer.

A case of mistaken identity. Eight years dead, a crooked cop re-emerges.

A little bit goes a long way; Cannon is poisoned with 72 hours to find the antidote.

Cannon to the right... Cannon to the left... an old buddy's last request: go to Mexico and bring back his son's body.

Down for the count, an oil company VP turns to Cannon to prove his innocence.

A desert heiress is terrified by the sight of a snowman with an ominous axe in its noggin.

Down the primrose path, a judge is compromised by his wife.

A figure of fame, the son of a general is thought to have killed a gang leader.

Dead men tell no tales out of school. A leader of the black community is murdered on the verge of uncovering a wrong.

A film star's son is missing, or is he?

Snapshots reveal a dubious link between policy and high crime.

Who will believe a child who has seen an Arabian heir made off with?

A publisher is accused of murder, for various reasons.

An embezzler has disappeared, but there's more than meets the eye.

Cannon is menaced by memories of his service in Korea.

A bad speculation leads to an apparent abduction.

A suspicious death in a space lab.

Deporting an old gangster proves fraught with peril.

A case of vengeance. The girlfriend of a pro ballplayer is murdered.

A well-to-do young man's death in Acapulco is ruled an accident, but his family hires Cannon to investigate.

An Army researcher goes berserk; his wife pleads with Cannon to intervene.