Detectives discover a shocking twist involving unlikely suspects when they investigate the brutal beating of a black man dumped near the highway.

After the detectives find a murdered postman and a woman who was left for dead in her apartment, the investigation leads to a serial killer and a surprise.

The killing of a professional escort leads to a case involving the relationships between a young man and two older women.

The double murder of a wealthy man and his daughter leads the detectives to the wife and stepmother of the deceased. However, Canada's objection to the death penalty hampers McCoy and Carmichael in seeking crucial evidence for obtaining a conviction.

Evidence points the detectives in the direction of a fascist youth gathering after the brutal beating and murder of a high school girl.

Briscoe and Curtis investigate a possible homicide while probing the assault of a retired divorce attorney.

Briscoe and Curtis investigate the murder of a police officer who was shot while on an undercover stakeout.

After a philosophy professor is pushed in front of a subway and killed, the investigation leads to a suspect who, following a divorce, changed his identity and disappeared with his daughters.

A shootout between a motorist and the police leads to the discovery of a gruesome Russian mob killing --- and a traumatized boy who was an eyewitness to the murder.

McCoy and Carmichael risk violating the civil liberties of witnesses when they are forced to jail them in order to safely continue their investigation.

A murderer's shooting spree in Central Park prompts Briscoe and his new partner, Detective Eddie Green, to trace the murder weapon's origination; McCoy makes it his mission to punish the killer and the gun manufacturer.

Briscoe and Green believe a 10-year-old is responsible for a child's death, and McCoy wants her isolated to stop any future fatalities.

As Briscoe and Green investigate the shooting of judge, suspicion quickly points to her husband as the person who ordered the hit, but McCoy's case is hindered when she refuses to implicate her husband during the trial.

Jamie Ross returns as a defense attorney to represent a previous client who has key evidence concerning a prisoner on death row.

A frustrating investigation of a purse-snatching victim who was fatally shot leads to tension between Briscoe and Green over age and racial innuendoes. Briscoe notices his partner has developed a dangerous habit.

A taxi driver finds that his passenger is dead, leading the detectives to a case involving an insurance scam and Holocaust victims.

The murder of a stockbroker points to organized crime when a hired hit man kills the prime suspect.

The murder of a white teen-ager in Harlem seems like an open-and-shut case until two patrol officers are implicated in the crime.

A wealthy woman, who is a patron of the arts, is found dead in her apartment and the ensuing investigation leads to a suspect whose violence was spurred by a painting similar to the crime scene.

The death of an elderly man trying to find who was responsible for the torture killing of his son in 1973 Chile leads to a high-level foreign colonel who is now in a Manhattan hospital.