O'Brien, Giambone and Kirkwood investigate the murders of the trainer and jockey of a prize racehorse.

Colby and Carson are the subject of a department investigation. Guest star: Leslie Toth. With Scott Hylands and Jeff Wincott.

O'Brien and Giambone investigate the death of a star college hockey player who had ties to a gambling ring.

An unbalanced woman from O'Brien's past makes an attempt on his life and injures Nicole in the process.

The death of a young model leads O'Brien, Giambone and Kirkwood to a top model embroiled in blackmail.

During a radio interview, Hogan (Sean McCann) is challenged by a murderer he previously arrested. Guest stars: Alan Scarfe and Frank Moore. With Scott Hylands and Jeff Wincott.

The reappearance of his first partner's killer rekindles O'Brien's memories and renews his determination to capture the man.

A neighbourhood's inhabitants are hesitant to reveal to the police what they know about a young girl's murder.

A lounge singer is seen arguing with his cousin over money. The cousin is later found murdered. Does the lounge singer have ties to the mafia? O'Brien and Giambone seek the cooperation of a frightened singer (Danny Aiello) blackmailed by the mob.

The enraged father of a runaway who turned to prostitution is accused of murdering her pimp.

Whitey's cousin becomes a murder suspect when the limousine he drives appears to be connected with several deaths.

Sympathy for the man's family makes Giambone reject suicide as the cause of a failing industrialist's death.

An eager TV newswoman (Cynthia Belleveau) puts her life in danger when she reports on a crime family's activities. With Scott Hylands and Jeff Wincott.

O'Brien and Giambone enter the world of child pornography while seeking a runaway whose father was killed searching for her.

A rape victim learns that her assailant has been released from prison after serving only four years of his sentence.

A young astronomer sees a homicide through her telescope, but her frightened mother will not let her testify.

O'Brien and Giambone (Scott Hylands, Jeff Wincott) uncover a drug-smuggling ring that uses innocent senior citizens as couriers. Guest stars: Kay Tremblay and Cec Linder.

When a mobster decides to testify against his boss, O'Brien and Giambone grudgingly agree to protect the informant.

Kirkwood's old friend, a presumed-dead rebel leader in South America, wants everyone to know he is alive.

Giambone and O'Brien (Jeff Wincott, Scott Hylands) are faced with a drug war after a narcotics dealer is slain. Guest star: Dean Richards.

A young woman leads O'Brien and Giambone (Scott Hylands, Jeff Wincott) to a hit man who plans to assassinate the deputy mayor.

Giambone and O'Brien are assigned to investigate several murders after Kirkwood's friend gets involved with the Chinese underworld.

When a junkie who attempts to rob the bar is killed by an irate patron, Nicole hides the real facts from O'Brien.

Vociferous animal rights activists raid a research laboratory and steal monkeys to use in a propaganda campaign.

Whitey and his girlfriend become mob targets after he witnesses a murder during his pickup of stolen merchandise. Whitey and his girlfriend are forced to enter the witness protection program.