The investigation into the rape and murder of a teen reveals a serial killer stalking the city's streets. After convicting the killer, the prosecutors go after a lawyer who knows where other bodies are hidden but refuses to disclose based on his legal beliefs.
A bounty hunter on the trail of a rich fugitive is found dead in a hotel room.
A carjacking leads to the release of a SARS virus and the detectives have to find the original infected person to avoid a total outbreak of the disease.
An award winning songwriter appears to be the target of a staged death, but when the apparent clues unravel to reveal a darker truth, their innocence comes into question.
The detectives search for a cause when a fire breaks out at a rock show and kills over twenty attendees.
A recently unemployed executive is discovered dead in his apartment and the trail leads to an old man who had his identity and money stolen by the dead man.
A body is found in the Hudson River and the search for the identity of the slain woman leads the detectives to her husband initially. The investigation turns them rather towards her place of employment and possible judicial scandal.
A reporter who gave away troop positions while embedded, the release of this information led to several casualties, is shot upon his return home. The detectives go through the suspects, one of which is a sergeant who lost men due to the reporter's carelessness.
A grief counselor who talks with the dead is poisoned and the investigation reveals his shady past and a potential suspect.
A clothing company owner is murdered and the detectives must track down the late night visitor who committed the crime. The investigation reveals the culprit to be the boyfriend of one of the company's employees, a new mother.
The detectives handle the case of a hit-and-run homeless victim, but soon discover it was murder when the driver allowed the victim to die in her garage over seeking medical attention.
A dead bookie leads the detectives to a potential mob hitman.
The murder of a motivational speaker reveals a kidnapping that may be tied to the initial crime.
A man takes on city hall with a gun and, in doing so, kills a councilman and wounds an inspector before escaping. The detectives try to discern what connection the suspect had to the councilman, but discover, instead a connection to the water inspector.
The strangulation murder of an unconventional peace activist comes under investigation.
The witness to the murder of a drug dealer is himself killed and McCoy pledges to bring the culprit to justice.
Initial suspicion in the murder and dismemberment of a body falls on the victim's girlfriend who turns out to not be a girl at all.
Initially Briscoe and Green believe the murder of an elderly woman to be committed by a criminal ambulance driver with robbery on their mind, but further investigation ties the woman to a Nazi war criminal's deportation.
The investigation into the murder of an Assistant District Attorney reveals that the man led a double life.
The detectives try to piece together clues when a Hollywood producer working on a mob film is killed.
The fan that ruined a Yankee playoff run is killed at a bar and the detectives have to whittle down the suspects from all the baseball fans in New York. When an ex-con becomes the prime suspect, the possible motive for the murder shifts.
Two Japanese tourists are attacked while vacationing in New York and the wife dies of gunshot wounds. The police follow the leads secured through information from her husband, but then follow the trail of suspicion back to him.
A businessman is found dead on the morning after his wedding and the suspects could be his new wife or his daughter.
The murder of a deliveryman reveals his association with a group of internet-based swingers.