An African-American community activist, named Kwasi, with whom Sipowicz had a previous run-in, is found murdered in a drive-by shooting. Simone and Sipowicz investigate, and Sipowicz rekindles Fancy's and Kwasi's family's anger over the previous incident. Meanwhile, Martinez and Medavoy investigate a homicide at a bodega and have a hard time getting witnesses to cooperate.

Simone and Sipowicz investigate a story that a diamond dealer and his partner report that one of the dealer's sisters is missing with a bag of diamonds worth a million dollars, but the sister's boyfriend is actually responsible. Meanwhile, Martinez, Medavoy and Russell look for the assailant of Gina who badly slashed her face up while she was on her way to work, and Martinez cannot cope with this sudden turn of events. Simone and Kirkendall go out on their first date, while Russell cannot cope with the fact of being alone again.

Simone and Sipowicz investigate a murder, but the procedures they must follow make them unpopular at the precinct when a fellow cop might have been involved. Meanwhile, Medavoy and Kirkendall investigate the murder of a young girl where the only clue is a videotape that starred her crushing worms. Russell goes missing and eventually turns up in Simone's apartment where she recalls to him that her father molested her as a child.

Two trans women, named Angela and Peaches who assisted Russell on a previous case, arrive at the precinct where 'Angela' is seeking protection from a man who's beaten him. But afterwords, Angela is founded murdered and Sipowicz, Simone and Russell investigate. They eventually receive help from Simone's former junkie informant, Arthur Cartwell, to find the perp. Meanwhile, Kirkendell investigates the theft of some small items by a old friend's parents. Kirkendell confronts her old school friend, Lucy Hastings, to persuade her to return the items as well as enroll in a substance abuse program. Elsewhere, Fancy's wife, Lillian, tries to sell some health food products at the precinct, but Fancy begins to think that it is not a good idea.

Simone's continued involvement with the FBI sting against Joey Salvo jeopardizes his career when the men from Internal Affairs investigate him and suspend him from active duty. Meanwhile, Sipowicz and Russell investigate the gruesome murder of a young woman where a psychiatrist, named Dr. Wentzel, insists on implicating his patient's father for her murder. Martinez and Medavoy have a hard time over a haughty mugging victim who is a writer from a local magazine that wrote a bad story on the cops of New York City. Simone's involvement with the FBI reaches a cliff-hanging climax when in a secret meeting with Salvo, the mobster is hit by gunfire by an unseen assassin. Sipowitz, following Simone, comes on the scene and sees Simone standing over Salvo's dead body... and thinks Simone killed him!

Simone returns to work at the 15th Precinct and immediately helps Sipowicz with his case of the shooting death that occurred during a robbery at a local bar. Meanwhile, Martinez and Medavoy stake out a hotel where a serial rapist has been committing his crimes. Gina finally accepts James' proposal and wants a quick wedding.

Simone and Kirkendall work on a murder case where a son is bitter about his father's death and offers $5,000 to anyone who can produce the killer, and the result is a greedy horde of people with many false leads. Meanwhile, Sipowicz and Russell investigate the rape of a nine-year-old girl, whose mother thinks the culprit may be a retarded boy from their apartment building.

Simone and Sipowicz investigate a break-in of a high-rise apartment where the wife and baby are killed and the husband injured. Vince Gotelli, now an insurance adjuster, tells Simone and Sipowicz that the man may have faked a break-in to kill his family to collect an insurance policy. Meanwhile, Fancy gets some clues about a 15-year-old unsolved murder case from a visiting old friend who is dying. Also, Russell, Martinez, and Medavoy investigate the murder of a record company executive who wasn't very popular among his co-workers.

Simone and Sipowicz investigate the murder of a nurse where the suspects include a struggling actor, a crazy man, and eventually a uniformed officer from the precinct named Tommy Richardson. Meanwhile, Medavoy and Kirkendall look into the death of a bicycle messenger who was killed for just trying to help a man whose backpack was stolen, so they determine that the backpack contained drugs. When they get a suspect into custody, Kirkendall figures out a clever way to get an ID on the suspect who won't cooperate. Also, Sipowicz's doctor tries to talk to him about how to deal with his medical problem, but Sipowicz won't listen.

Simone and Sipowicz look into the shooting of two women (one of whom was killed) who were raped by a group of men in an apartment owned by a former crack dealer, named Jamal, who was crippled in a previous shooting incident. Sipowicz confides in Simone about his medical condition when Simone sees Sipowicz's doctor pull him aside and talk to him confidentially. Meanwhile, Kirkendall, Russell and Medavoy investigate a shooting at a clinic. When they get a woman suspect into custody, a security guard from the clinic who was her secret admirer comes to the precinct demanding she get a second chance.

The detectives get a break in a case involving a police officer suspected of committing murder.

Sipowicz returns to work after his successful prostate surgery, but apparently too soon, for he has an accident while interrogating a suspect. He is given desk duty to help Simone and Russell investigate the murder of a woman's boyfriend by her ex-husband, the ex-husband later revealed to be searching for his daughter who's gone missing while in the ex-wife's care. Meanwhile, Simone is called upon by Detective Nick Savino to help investigate a missing persons report that is being filed by the nephew of one of Simone's apartment tenants. Based upon past exchanges between the missing woman and Henry Coffield, another building tenant, Coffield becomes a suspect. Former administrative aide Naomi Reynolds shows up at the station, now wearing a private security uniform and speaking in her natural Australian accent, to visit Simone, hoping to tell him that her situation with the INS was resolved and she is now furthering her pursuit to one day become a NYC police officer.

A murdered couple is found where the dead man is a car salesman and the woman is a prostitute. Simone and Sipowicz look into the salesman's death, while Medavoy and the other detectives look into the prostitute's death, where the M.O. of the suspect is to buy used condoms from a prostitute and then mix the spent semen with his own to cover his crime. As Sipowicz recovers from his surgery, he finds that a recent blood test is not favorable and once again keeps his medical problem to himself.

The detectives investigate a grisly murder in which an elderly woman's hands and feet were cut off. Simone's health continues to deteriorate.

The detectives find themselves caught between the F.B.I. and Internal Affairs when an off- duty officer is killed during a robbery. Medavoy falls victim to Sipowicz's mischievous prank.

Jill's son has his first communion, where Andy and Danny spot a surveillance van across the street from the church. A baby is found dead in a dumpster.

Andy is finding Theo a challenge. A man is found dead in a hotel bath-tub, minus a part of his anatomy and some personal effects. A mother brings her son into the house because she thinks he's been stealing.

It's James' last day with the squad before he moves on as a sergeant. Jill's ex is in the wind and causing more problems for Jill.

Medavoy gets a new partner. A cop is shot and killed. Diane seeks counsel from Andy about whether to tell Jill what she knows about her ex.

A woman is run over by a bus, she was already dead when she was tossed from a van. Two Russian boys go missing after their father says he left them with his sister.

Medavoy and Jones look for a woman reported missing by her "distraught" husband; Andy and Danny deal with a snotty, eccentric art owner whose collection has been stolen.

Diane once again finds herself embroiled with Harry Denby who has information about Jill's ex-husband. The squad investigates a home repair scam.

The detectives investigate a multiple homicide at a fast food restaurant; an addict gives his 5 & a half year-old daughter to a drug dealer as collateral on an overdue loan; Internal Affairs reopens the Kirkendall case.

A female officer is shot following a stationery store robbery and later dies in hospital. Danny tries to keep Diane safe. A new ADA arrives. Katie decides to move back home.

Diane turns to a friend at the Survivor's Network for help. A body is pulled from the water. Two Chinese men are brought in handcuffed together. The new computers arrive.

A man loses his penis. Fancy makes Captain and the incoming Lieutenant is a ball-breaker. Andy is having second thoughts about Cynthia. A mob hit-man sings like a canary and implicates a celebrated Customs officer.

A man caught carrying a cash register takes Andy and Danny to a body. Fancy is packing up to leave. His replacement alienates the squad before he's even left.

Rodriguez mediates when Sipowicz and Sorenson clash with detectives from another squad anxious to solve a multiple murder case; Medavoy and Jones try their hand at making extra cash by cleaning up murder scenes.

Jones and Medavoy investigate the murder of a Chinese restaurant owner. An IRS lawyer claims to have been kidnapped and released, but Sipowicz and Sorenson doubt his story.

Sipowicz and Sorenson investigate the murder of an exotic dancer; Sipowicz and Medavoy act as elderly decoys to catch some street thieves attacking old people outside a local bank.

Sipowicz and Sorenson investigate the murder of a drug dealer, while Sorenson continues to see the stripper, Kristen, who draws him into a favor for the owners of the Tailfeathers club.

Sipowicz and Clark investigate the murder of a hispanic worker, while Medavoy and Jones search for a puppy-knapper who stole valuable champion bulldog pups. McDowell gets a new partner--Rita Ortiz.

The detectives work to solve two murders: the shooting of a rising rap star and the shooting of stripper found nailed to a table. McDowell and Sipowicz try to define their relationship.

The squad investigates the murder of a young Chinese girl along with an alleged rape case. Irvin learns his father is dying. Clark tries to find a foster home for James Kilik.

The detectives investigate two crimes: the murder of a back-alley cosmetic surgeon and a violent rape; Clark finally takes Laughlin on in the boxing ring.

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.

Andy and Connie return from their week's holiday with Theo. A boy goes missing, and the squad is lead to a pedophile in the area. John meets with a lawyer about his father's estate.

The temperature is rising. Sipowicz receives a death threat. A prostitute is murdered, causing IA to look at Clark. A huge drugs and cash hoard is found. An elderly woman is found tied up and beaten.

Andy and John attend a shooting where a man is shot in the groin. Connie's sister turns up, pregnant and beaten by her husband.

Maya's partner in anti-crime is killed. A little girl is snatched off the street. Connie becomes foster-mother to her niece.

Connie struggles to settle with the baby. A woman is found dead in a vacant lot. Another is found dead in the laundry room of her building. The Lieutenant dresses up for a lunch.

Andy and Theo move out. Tony thinks about calling it a day with his ex-wife. Sipowicz and Clark Jr look into the threats made to Clark Sr. A distressed, schizophrenic young man keeps saying "she can't breathe".

Clark is placed under arrest after police find heroin in his car; detectives search for clues when a woman is beaten to death with a cordless drill; a murder victim's obsession with clean living may have led to his demise.

The detectives investigate the murder of a homosexual man who gave room and board to Latino parolees in exchange for sex; McDowell and Ortiz search for clues when a community activist is stabbed to death.

As Andy and Connie prepare to finalize the adoption of baby Michelle, Frank Colahan's mom and dad show up. Connie sweetly and sincerely tells them they want the grandparents to be part of Michelle's life to the fullest extent possible.

The murder of a man who frequented a betting parlor leads Sipowicz to an old friend; Jones searches for the man who attacked Haywood; the detectives research the Colahans' background.

The detectives hunt for a man suspected of killing minorities to avenge injuries his brother suffered during the first Gulf War; Sipowicz and McDowell plan to marry.

Sipowicz and Clark investigate the shooting death of a jogger who'd been having an affair with a police officer; and Medavoy and Jones search for answers when the body of a comedy club owner is found in the trunk of a stolen car.

Teacher David Lewis comes into the squad-room to talk about Cindy Clifton and a support group that he ran that she was a part of. Sipowicz and Clark let him go but send off some of his left behind chewing gum to DNA for testing. Jones goes to court as its the day when Michael is to testify against his father. Ortiz and Ronson go to the scene where tourist Ned Applebaum has been mugged and lost his wife's $35,000 necklace. Ortiz and Ronson eventually find out that Ned met a lady friend on the Internet and he was going to meet her in Little Italy when he was mugged. He was going to loan her the necklace so that she could use it as collateral for a loan for her sick child. The detectives get the PO Box number where Applebaum had sent previous gifts to his lady friend. Ortiz and Ronson go to the apartment of the owner of the PO Box. He is a day trader/con artist who they discover took advantage of Ned Applebaum. They get the necklace back and Ned is forgiven by his wife. Later, Gibson tells Sipowicz and Clark that David Lewis was found DOA in his apartment. They go to the scene and try to determine whether the death was a suicide or not. Sipowicz tries to decide how to proceed with the investigation of Lewis's death; both he and Clark believe that Brockhurst might be involved. Clark gets a call about Dr. Jennifer Devlin and goes to the hospital. The doctor tells her she needs to remain restrained for now, but he is allowed to see her as long as he doesn't loosen her restraints. Sipowicz finds Brockhurst and tells him of his theory that he killed David Lewis. Brockhurst doesn't admit to anything, but tells Sipowicz he is going to be able to sleep tonight now that the case is closed.

Sipowicz investigates a murder involving the victim's current husband and ex-husband; a longtime informant gives Ronson information about an illegal gun shipment, but the suspect's father is being followed by the FBI; Jones gets into a fight with Craig after he's acquitted of murder charges; and Sipowicz is the proud father of a baby boy.

A squad member is shot while storming an apartment; Clark and Jones investigate the bludgeoning death of a woman whose wealthy husband was going to finance a friend's salon business.