Detectives unveil a family secret when looking into the death of an adopted girl.
Detectives investigate the beaten murder of a black man who was trashed along the highway.
The shooting of a teen is linked to the murder of a young woman and a drug operation.
The death of a child from a rare virus leads the detectives on a search to track down the source and encountering a deepening chasm of deception.
The detectives get a surprise when a serial killer confesses to the murder of a postman and a woman who was left for dead in the same building. When it turns out that the woman was the victim of a jealous girlfriend, the serial killer confesses to another crime to avoid facing the death penalty in Texas.
A dead embryologist and damage to a fertility clinic lead the detectives towards a killer.
A male escort is found shot and killed at a benefit concert and the trail leads to a love triangle between a young man and two older women.
When two boys find the dead body of a middle-aged man in a park, the detectives learn that the murdered man was a corrections officer at a women's prison who took particular interest in an inmate that Abbie Carmichael put away on drug charges.
A double murder leads to a woman and her stepmother who have an extradition problem with Canada.
A young high school girl is found severely beaten and tied to a tree in the middle of Central Park. The Detectives find evidence that leads them straight to a Hitler youth gathering.
While investigating a textbook shooting on the shores of the Hudson River, an NYPD diver fishes up a 1968 Volkswagen bus with the remains of a young man's bones still in side. The reopened case leads the detectives back to a controversial university uprising from the 1960's.
Two young boys find the body of a community leader in his Harlem Community Center. Briscoe and Curtis investigate and discover he may have been involved in dirty politics. A race is on to convict the correct murderer before political ties turn the community completely upside-down.
The detectives try to beat bounty hunters to the murderer of a parolee.
The body of a woman found murdered turns out to be a Washington DC resident and the detectives work with allies from Baltimore in tracking down the killer. The District Attorney's department runs into a wall when an independent council tries to intervene.
A young girl dies in an ER, and Briscoe and Curtis are called in to investigate when no one claims to have been her doctor. McCoy and Carmichael step in to fight for religious freedom despite attempting to convince a jury that strong belief in God doesn't exempt people from human decency.
Briscoe and Curtis investigate an assault on a divorce attorney that points to a particularly messy divorce and possible homicide. Carmichael insists on bringing the case to court to prove that no one is above the law.
While on an undercover stakeout, an officer returns to his car and finds his partner shot dead. The detectives soon find that the trail leads back to the police department.
The detectives investigate the shooting of a reporter who wrote stories about gangs, but they quickly discover that the shooter was closer to home.
When a university professor is thrown from a moving subway car into an oncoming subway car, Briscoe and Curtis suspect murder. They discover a secret family life and have to help McCoy and Carmichael prosecute despite an expired statute.
A heart attack suffered by a big-shot business man is linked to a sexual performance drug and the District Attorney's office puts Curtis on the stand to testify about criminal motive.
Briscoe and Curtis investigate the death of an audio salesman and the trail leads to the mafia. The suspect calls on his "friends" to keep him out of jail.
Briscoe and Curtis find themselves in college when a promising mathematician is found strangled and stabbed. The investigation uncovers the young woman's turbulent relationship with a professor, but they fall short of evidence that links him to the crime. McCoy becomes suspicious of two of the victim's friend who seem determined to protect each other's stories.
A family's murder has one witness, a young boy, and ties to the Russian Mafia. Pushing ahead with the case not only endangers the witness but also the prosecutors as well.
When the ADA and the prime witness' mother are killed, McCoy tries to save his case against Russian mobsters by jailing them. He works against the clock to finalize his case against them before they are released for a lack of cause.