Sipowicz is taken hostage in an interrogation room by a suspect in the murder of a pot dealer and two of her friends; a suburban mom found with drugs in her purse appears to be covering for her son.

When a convicted rapist is found shot to death, his victims become suspects in the murder investigation; and Sipowicz searches for answers when a stranger targets Theo as he walks home from school.

Simone and Sipowicz investigate the murder of a gay bar proprietor and have transsexual Candace La Rue as a material witness. Dan Breen decides to visit his mentally disturbed son, Danny, despite Sipowicz warning him not to do so. Elsewhere, Medavoy investigates a fortune telling scam after a woman is conned out of her life savings; and Lt. Fancy’s wife goes into labor.

Sipowicz and Clark investigate when Julian Pisano is wounded in a shooting incident; McDowell and Ortiz assist a woman who doggedly pursues justice when she's conned out of $100; Clark grows concerned when his father stops returning his phone calls.

Sipowicz tries to get a confession and capitalizes on a mistaken identity. Lt. Fancy’s brother is falsely accused of accepting bribes and Simone is able to uncover the truth behind the crime. Russell’s apparent hangover almost results in a hazardous situation during a sweep. Later, the precinct throws a bachelor party for Sipowicz, who is noticeably dealing with pre-marriage jitters.

An ill man is accused of killing his sister, but Simone suspects otherwise. Meanwhile, Medavoy and Sipowicz go under cover to recover a stolen Jewish icon. Sipowicz struggles to keep a secret.

2 male transvestites, previous acquaintances of Russell's make a complaint against a boyfriend. The parents of an old school friend of Kirkendall's accuse their daughter of theft.

Kelly investigates the death of an undercover cop in Chinatown, and to do so he must accept help from a prominent Chinese gang leader. Meanwhile, Sipowicz finds out that a former abuse case he had worked on has escalated into homicide; and Medavoy and Donna’s relationship is revealed after Lt. Fancy catches them in the act, leading to Fancy warning the precinct against interoffice relationships.

Three fast-food employees are murdered execution-style. As Simone and Sipowicz investigate the murders, Martinez and Lesniak look into the attempted rape of an elderly woman. Meanwhile, Sipowicz and Sylvia Costas have differences when it comes to planning their wedding; and Martinez becomes jealous when Lesniak has lunch with an old friend, Dr. Druzinski.

Simone and Sipowicz investigate the death of a pimp, but all evidence they find points to one of their own, Jerry McCabe. Medavoy’s constant jealously causes Donna to rethink their relationship and Simone begins to worry that Benita Alden is using him for her career gains.

Simone has to convince Joyce Novak, a witness in a double-homicide case, to testify. Sipowicz is assigned to investigate the murder of an elderly woman who was the owner of a candy store he worked at when he was growing up.

Simone becomes attracted to an undercover cop, Diane Russell, as they work together to capture an arsonist. Sipowicz becomes personally involved in a case after a woman he convinced to testify in a case is murdered. Martinez and Lt. Fancy square off at the annual department boxing tournament.

Help comes from an unexpected place as Sipowicz and Simone investigate the murder of a bookie. Joyce Novak, a witness to a murder, charges Simone with sexual harassment. Meanwhile, Sylvia and Sipowicz head to religious counseling to prepare for their upcoming nuptials.

An ill infant becomes the missing link in a serial rapist case Simone and Sipowicz are investigating. Simone suspects Russell of trying to cover up a serious problem; Medavoy considers getting back together with his wife with whom he is separated; and Irvin asks Simone for help when police officers assault him and his lover.

Martinez and Lezniak's relationship takes a step forward. Simone and Sipowicz are called to a bloody murder scene with satanistic overtones. A doctor is mugged and shot on a visit to his secretary's apartment. Russell and Medavoy feel the wrath of his wife's anger.

Simone and Sipowicz investigate a street shooting when witnesses name a man who is supposed to be in jail. Macey, a young man who was previously in the care of Lt. Fancy, is caught carrying drugs. Medavoy meets with more disappointment.

A dead woman, found in an alley appears to be another in a series of brutal rapes. Simone and Sipowicz investigate. The rest of the squad tries to find out why shots fired from a bus injured a woman and a child.

Rap star 'Daddy Kool' is shot but refuses to cooperate with the police, to catch the shooter. Lt. Fancy is accused, by a uniform cop, of setting him up to rob a drugs dealer. Medavoy gets a proposition.

Simone and Sipowicz investigate a body, which has been thrown from a roof. The only witness is worried about 'aliens'. Medavoy and Martinez get involved in a string of cab hold-ups.

A series of armed robberies at ATM Cashpoints leads Simone and Russell to a suspect. His mother knows where he is but refuses to help. Medavoy gets confused when a man blames his identical twin brother for a sex assault.

Russell is still struggling with the loss of Simone and enlists Kirkendall's help. ADA Costas looks for ways to get Freddie Asuncion and clear Luis Suarez's name. The whole squad is involved when a supermarket is robbed and an off-duty cop is killed. When the FBI and Internal Affairs become involved, it opens old wounds for Sipowicz and Sorenson.

Sorenson's private life affects the whole squad when his girlfriend turns up at the station. A body is found in a dumpster. The squad get a lead when the dead man's credit card is used.

Danny could be in big trouble for roughing up a suspect. Detective Connie McDowell joins the team for the day.

Ronnie Drucker, a detective under investigation, is reassigned to the 15th squad and compromises Simone. A young girl, confused by drugs, is the only witness to a shooting in a laundromat.

A Limo driver is shot. Witnesses blame it on the passengers. Simone and Sipowicz search for his last clients. A new female detective joins the squad and immediately gets involved with a man receiving death threats. Simone helps Savino search for the killer of the girl shot through the peep-hole.