McCoy must connect defendants who are part of the Russian mob with a money-laundering operation before vital evidence is destroyed - and any more witnesses are found dead.

A crime scene where both the victim and perpetrator are found dead leads detectives and attorneys to a speechless 10-year-old witness – and into a dangerous web that involves the ruthless Russian mafia.

A coed's killing leads to a case involving the deceased's relationship with a professor and two male students who vouch for each other's whereabouts on the night of the murder.

The murder of an audio installation salesman leads the detectives to a case with connections to the Italian mafia.

The death of a corporate mogul caused by an overdose of a sexual performance-enhancing drug leads to a case with a witness that puts Curtis in a compromising position.

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

The investigation into the shooting of a newspaper columnist leads to a murder case from the 1970s and involves a suspect who at the time had been a juvenile.

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

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

After a teen is found dead in the emergency room, the investigation leads to a case involving a religious ritual and a defendant who claims that the action taken was dictated by a saint's voice.

The New York and Baltimore detectives re-team to investigate the murder of a government worker and expose a connection to the White House.

Briscoe and Curtis race against time to find the killer of a parolee before two bounty hunters find the suspected murderer.

Briscoe and Curtis probe the murder of a popular Harlem community leader while McCoy and Carmichael struggle to prevent a chaotic situation involving affirmative action.

Briscoe and Curtis reopen a case that was closed in the 1960s when a vehicle is dredged from the Hudson River containing the remains of a murdered man who was involved in a fight for civil rights.

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

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.

The murder of a corrections officer leads detectives to a women's prison where a guard was linked to an inmate Carmichael put away on drug charges and a confrontation with defense attorney Danielle Melnick.

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

The murder of an employee at a fertility clinic leads to a case involving a dead man's first and second wives.

NYPD Detective Mike Logan, who was reassigned to Staten Island after punching a corrupt politician, takes on a grisly murder case. When the investigation leads him back to the 27th Precinct, Logan sees a chance to resurrect his flailing career and be reinstated as a homicide detective.

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.

After a child in a day-care center dies from an antibiotic resistant bacteria, Briscoe and Curtis try to find the source of the infection, leading to a case involving an extramarital affair, embezzlement and a drug manufacturer.

The investigation into how a teen got wounded leads to a case involving a young woman's murder and a drug operation.

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

After a baby girl is found dead, Briscoe and Curtis investigate the family and learn that her adopted family and brother were trying to keep some painful secrets. Jack gets a new partner, Abbie Carmichael, who had a 95% conviction rate in her four years with Special Narcotics. Together McCoy and Carmichael try to prove that the little girl's brother committed the crime.