A policewoman's son has an unusual hobby -- he holds up taxicabs. Eventually this results in the murder of an undercover cop.

A bum blackmails a black guy. The bum's friends roll him for the money and attempt to pin his death on the black guy, who is the lovable and successful nanny to a young kid. What's the black guy hiding?...

A boy who saw the slaying of a mob chief is torn between telling Stone and joining the syndicate.

A man seduces the widow of a bank robber. The money he stole was never found. When she tells him where it is, he kills her and sets out to take the money from her children out in the country.

While Keller recovers from a gunshot wound, Stone is forced to team with hippie-haired narcotics officer Al Walczinsky. Together they try to break up a narcotics ring that's gone murderous -- until Stone suspects that Walczinsky's in on the racket.

Steve Keller goes undercover as a draft-dodger to discover who killed a young Vietnam war deserter.

A troubled teen from a broken home is suspected of shooting a friend's stepfather.

A skeleton discovered on Alcatraz is that of a convict who'd supposedly escaped in the 1950s.

A prizefighter refuses to throw a fight, instead opting to throw the gangsters out the window of his hotel room. Injured, he hides in the hotel as both the police and mob close in.

A man who has been tormented by mysterious, threatening phone calls believes that his stalker has entered his property, and shoots him. Unfortunately for the man, his victim was a totally innocent cop...

Stone searches for a fugitive, and is dogged by the fugitive's innocent and naive daughter.

An average older woman is concealing an affair with a married diplomat and believes she is targeted for death.

A bishop (Mike's friend) tries to protect the person who shot him, but revelations in the course of the investigation start to shed suspicion on the bishop's accounting of events entirely.

Stone clashes with an abrasive NYC cop who is on the trail of his partner's killer.

Keller, temporarily partnered with a hotshot detective, sets out to discover why his new partner seems to be absolutely convinced of a murder suspect's guilt for no apparent reason.

Mike Stone has reason to believe that the death of a politician is no accident.

A Vietnam veteran goes AWOL from the army in order to kidnap the son he has never seen.

Stone and Keller face off against Gilliam, a wealthy executive who transforms women into his own special image of perfection, then kills them when they inevitably fail to live up to every demented standard of his.

Domestic terrorists take several people hostage, including Keller. Stone has to deal with not only the terrorists but a right-wing journalist and a vengeful father whose daughter was killed.

A retired cobbler takes the rap for a shooting to protect the real killer, the grandson of his best friend.

While investigating a lead, Steve is run over by a car and rendered a vegetable. Mike insists on taking revenge, and is demoted to walking a beat.

A cop seeks to catch his brother's murderer by going undercover in an illegal gambling operation.

A music producer turns up dead; a popular singer he was producing an album for is convinced that he is going insane and killed the producer, but the truth is stranger.

As a dare to try to win a spot among a gang of high school thugs in the 1950's, Charley Belasco commits a crime that sends him to prison for 20 years. Upon his release, he goes on a murderous rampage to hunt down the the high school thugs who spurned him.

Arnold Schwarzenegger plays a bodybuilder with a strong body but a fragile ego, who causes trouble wherever he goes.