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A blackmailing ring that specializes in extorting money from homosexuals is the subject of an investigation by Lt. Mike Haines and his detectives, Jeff Ward and Johnny Corso.

Confidential informants are a key source of information in many criminal investigations. But that information is not always reliable, sometimes completely wrong. Detective Ward has heard it all before, but now one of his informants really is in trouble, with his life being threatened by two thugs.

Detective Johnny Corso is now the one being investigated. He's accused of attacking a young housewife.

Haines and Ward try to find a gun happy murderer who compares himself to infamous killers like Dillinger and Billy The Kid before he can kill again.

A VIP visiting New York is almost assassinated by an unknown sniper. It's now the job of Haines, Ward and Corso to prevent that from happening again by finding the sniper before it does.

An unusual amount of "accidents" have taken place on a construction site, prompting detectives Corso and Ward to go undercover as laborers to find out if there is a shady reason for them.

Old Gangsters Never Die...they retire, an aging hood tells Haines, who is trying to nail him for a string of hijackings during a territory war for the top spot.

A highly trained Vietnam veteran commits manslaughter and uses military tactics to try and elude detectives.

Putting his own life at risk, a television newscaster out maneuvers the police to get an interview with a dangerous fugitive wanted for murder.

Detectives Corso and Ward are on the job trying to capture sports-car thieves. But the case suddenly gets more complicated when Corso becomes interested in a woman who seems to be involved in the thefts.

Haines and Corso pull out all the stops to clear Ward, who is suspected of mob affiliation.

The homicide squad hunts for a burly tough wanted for the murder of a prostitute.

Detectives Haines, Ward and Corso try to break up a citizens' vigilante committee headed by a Reverend.

Haines and Corso search the city for a mad bomber.

The detectives try to aid a jockey who is receiving strange midnight phone calls. At the other end of the line: a man suspected of murdering two priests.

Detective Haines stakes out the waterfront after receiving a tip that a load of heroin will be arriving on a passenger liner.

Detectives investigate the murder of the wife of a South American patriot in exile in New York, who's determined to return to his country and free it from the current dictator.

A residential area huddles in terror as a rapist walks the streets, Haines prepares a trap, and reluctantly sets the bait: a policewoman dressed in alluring garb.

An elderly school teacher is murdered in Detective Ward's old neighborhood. But when he returns, Ward finds that his old friends are less than trustful of the policeman in their midst.

Detective Corso launches an investigatin to clear a fellow officer accused of brutality. The plaintiff, suing for $100,000, has a lot at stake - but so does his lawyer, a young man with political ambitions.

The world is closing in on Gino Santano, a fiery-tempered sailor accused of molesting a young boy. Gino's refusal to co-operate isn't helping his case, which reaches the boiling point when the child's angry mother and her neighbors demand speedy justice.

Spanish for a real man, the kind who, like Guijon Flores, would take a policeman's side in a brawl with a gang of toughs. Fearing retaliation from the hoods, Guijon's wife asks for police protection.

In hopes of busting up a gang of Central Park muggers, Detective Corso goes undercover, posing as a homeless person.

The detectives investigate an assault and robbery case. The victim: a tough, ex-private eye.

The police comb hippie haunts to find an impulsive runaway teenage girl.