Simone is still under suspension and gets a visit from the FBI. Kirkendall goes 'undercover' on his behalf. The squad hunt for a pimp who goes on the rampage, apparently killing indiscriminately.

3 men hold up a bar and a customer gets shot, but there's confusion over who shot him. Russell and Martinez investigate the latest in a series of rape attacks in the same hotel. Simone works his first shift.

Medavoy gets a call from Abby, saying her girlfriend has been killed. He, Martinez and Kirkendall hunt the killer. Simone, Sipowicz and Russell are called to a burnt out car which has a body inside.

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.

Simone and Kirkendall investigate the shooting of a Korean shopkeeper. His son causes problems when he offers a reward. Russell and Sipowicz talk to a little girl, who has been beaten and raped. Her mother is convinced that the assailant is a local mentally disabled boy.

A family of three is attacked in their home and only the father survives. Simone and Sipowicz investigate. An old friend of Fancy's confesses to his part in a 15 year old crime. The rest of the squad investigate a serious assault at a musical agency, which leaves a manager near death.

2 working girls are raped and strangled in their shared apartment. Simone and Sipowicz hunt the killers. Medavoy and Martinez get information that a contract killing is being arranged. Russell and Kirkendall search for a necklace which was given away by mistake.

The child of a rich family goes missing. The father suspects Israel, a local vagrant, of kidnapping him. Sipowicz has other ideas. In another case, a jewish girl is found raped and murdered on a bridge. Later, a young woman is caught using the murdered girl's credit card. Medavoy, Martinez and Russell piece together the information.

A murdered boy's father insists that a homeless man is guilty. The mother takes Russell into her confidence. Simone and Sipowicz hunt the killer.

An old school friend of Sipowicz asks for help to talk to his daughter about her relationships. Martinez and Medavoy investigate a bizarre theft of gold teeth.

A drug-dealer's wife is found shot and their safe emptied. Simone and Sipowicz take the case. Russell and Kirkendall put themselves in the firing line. Meanwhile, Medavoy and Martinez get a call to investigate the body of a dead prostitute, found dumped in the garbage.

A woman is found beaten to death and left in a wooden crate. Simone and Sipowicz trace her family. Medavoy and Kirkendall hunt for the shooter of a Car Services worker. Russell is called to the hospital, where a 6-year old boy has died. His parents claim it was an accident.

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.

A woman witnesses 2 black boys throwing a white boy from a roof. Simone and Sipowicz suspect that there's a drug connection. Lt. Fancy is angered by racist comments in the squad room. Meanwhile, Kirkendall and Medavoy are called to a home where a 12 year-old boy found his mother dead and chopped into pieces.

Simone and Sipowicz investigate the death of a woman who is found stabbed in her apartment. They get a quick confession but everything is not as it seems. Medavoy and Kirkendall hunt the killer of a cycle messenger who gets shot while apparently trying to catch a thief. Sipowicz gets a visit from his physician, but is not pleased about it.

Simone and Sipowicz continue the search for Darlene's killer and suspicion falls on a cop. Medavoy gets a call from Abby. Russell returns to work and she and Kirkendall hunt two black youths who shoot a student and steal his video camera. Sylvia returns to her job as ADA.

Two girls have been raped, then shot and left for dead, but one survives and points Simone and Sipowicz towards her attackers. The rest of the squad go to a Medical Centre where a security guard has been killed. His colleague's story differs from that of an independant witness and raises suspicions. Sipowicz finally admits his fears to Simone.

Sipowicz goes to hospital and fears he won't come out. Officer Richardson's wife pours her heart out to Simone and Russell. The squad investigate a bizarre death, involving a dead man in a tub, another with severe electric shock and a teenage girl, who won't say what happened.

While Sipowicz remains in hospital for his Prostate op, detective Martinez returns to work, after the birth of his child. The squad investigate the discovery of a body in a burnt out van. The 5 'friends' of the victim tell the same story, but the detectives suspect a cover-up. Medavoy shows Martinez his own childs birth video.

During a routine investigation into a domestic shooting incident, the detectives discover that a child has been missing for 2 months. Sipowicz - back at work after his op - and Russell have to tread carefully to discover the truth. Simone is called away to help another squad who are searching for a missing tenant from Simone's owned apartment block.

Two bodies are found in the same vicinity. One, a car salesman with a reputation for dodgy deals, has been shot and dumped. The other, a homeless woman, has been raped and murdered. The team splits up. Simone and Sipowicz enlist the help of Sylvia Costas, who comes up with a plan. Medavoy hits the jackpot, with his interview technique.

A mother and 5 year-old child have been shot dead in their apartment. Simone and Sipowicz suspect that a previous break-in may be connected to the killings and that ADA Cohen might be able to help them find the killer. Russell and Kirkendall search for a missing child and trace known paedophiles in their hunt for the abductor. Sipowicz's doctor gives him some good news and good advice.

Simone visits his dentist who asks him for help with his daughter's drug problem. A rich man's son is found tortured and killed. The father blames his son's 'gay' lifestyle, and names a possible suspect, but Simone and Sipowicz uncover a different story. A young girl is reluctant to tell the truth, after an attempted rape. Russell and Kirkendall enlist the help of the girl's mother.

A shoot-out leaves 2 dead and a third injured when a drunk, off-duty cop witnesses an attempted mugging. The cop can't seem to get his story straight and angers ex-drunk Sipowicz. The cop's boss wants him to take the blame, but Sipowicz wants the truth. Russell has to take Simone to hospital when he becomes ill, during the investigation.

Simone's condition starts to worsen, requiring more tests. Sipowicz, Medavoy and Martinez investigate the death of a man found in the park, with his pants down. Sipowicz gets tetchy, over the lack of information from the hospital.

As Simone's condition worsens, Lt. Fancy makes a request to the Uniformed Officers to be aware of the need for a usable heart. Simone's colleagues have to occupy their minds with the case of an old lady found hacked to pieces in her apartment. Of her two sons, one doesn't seem to care about it and the other is too full of drugs to understand what has happened. Sipowicz's mood gets him into a fight.

Simone's recovery is hampered by a chest infection. The doctors differ in their opinions of which treatment to use. Sipowicz's ex-wife turns up at the station, drunk and asking for his help.

New squad member, Danny Sorenson, arrives and gets sent to a drive-by shooting, with Sipowicz. The rest of the squad, including Russell on her first day back at work, attend another shooting. The two incidents are related and cause friction between the two teams of investigators. ADA Costas asks Sipowicz to look into an old case she has reservations about.

Sipowicz and Sorenson are called to a robbery, where the aged shopkeepers have been beaten. The woman dies and Sorenson is affected. They hunt 2 black youths who were seen running away from the store. Russell and Kirkendall are sent to a 'Gentleman's Club' where a client has been killed. One of the girls implicates an ex staff member as the possible killer. Sgt. Dorning admits his doubts to Sipowicz, about an old case.

Confusion reigns as an off-duty cop shoots an undercover cop after taking a bullet in the shoulder. When the first shooter confesses to Sorenson, it triggers Sipowicz and Lt. Fancy to renew their own private little war. Russell and Kirkendall, meanwhile, are busy investigating another crime involving a member of the precinct staff. ADA Costas is still worrying over the death, in Ryker's Island, of a man she helped put inside.

Kirkendall's son witnesses a stabbing in a convenience store. Sorenson and Russell join forces to try and protect him from getting caught up in the 'system'. Medavoy and Martinez have to get their hands dirty to solve the killing of a vagrant with lots of enemies. Sgt. Dorning helps ADA Costas and Sipowicz with the Suarez case.

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.

A close friend of Sorenson's takes the law into his own hands when he confronts a groper on his bus route and puts his life in danger. A female tenant points the finger at a male tenant, when another female tenant is found strangled and beaten to death. Sorenson becomes her confidant in order to get to the truth.

When a man's body is found shot and dumped in an alley, Medavoy and Martinez have to calm the victim's angry brothers. Russell and Kirkendall get a confession to rape and murder while searching for a missing schoolgirl. The squad's PAA is missing and her friend believes he knows why.

When a dead hooker is found on a building site, her identification causes problems for Russell and Kirkendall. Sipowicz and Sorenson are called in to assist Lt. Fancy and Sgt. Dorning, who then find themselves in a dangerous situation. Russell gets a visit from an acquaintance of her late husband.

A 9 year-old girl is found dead inside a locked basement, the supervisor is the only key-holder, but he has an alibi. Sipowicz and Sorenson have to solve the whodunit. Medavoy and Martinez help an old man to trace the person who swindled him out of 8000 dollars. Sorenson's sister comes to visit him. Dolores father turns up at the squad room.

Sipowicz has a nightmare about his father and Officer Dorning. A Police Officer shoots a drug dealer but can't prove that the dealer was armed. Sorenson and Sipowicz use all their resources to help him. Russell and Kirkendall try to settle a dispute between a convicted mobster and his Polish neighbour.

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.

Sipowicz and Sorenson have to find out who is responsible for a woman dying, after she was tied up during a robbery. The rest of the squad get involved in solving a truck hi-jacking. Information on the possible culprit comes from ex-detective Roberts, who also passes on a warning.

Ex-detective Mike Roberts is found dead, in an apparent suicide. John Irvine, the PAA, reveals his conversation with Roberts, to Sipowicz. The squad set up a sting to trap a suspect.

Officer Dornan disrupts an AA meeting, leaving Sipowicz no option but to involve Lt. Fancy. Dolores' father threatens to take action against Malcolm Cullinan and gets PAA Irvine into trouble. Sipowicz and Sorenson search for the pusher who supplied Mike Roberts. ADA Cohen continues to express his jealousy, over Kirkendall.

A man is shot dead in what his wife claims was a case of mistaken identity. Kenny Priest gives his evidence to ADA Costas, who has replaced ADA Cohen. Sinclair, Cullinan's lawyer, tries to goad Sipowicz.

Mike Shannon brings in a young boy who makes a confession to Sorenson. Sipowicz worries about his up-coming court appearance facing Sinclair. ADA Costas takes care of him. Dolores father attends the court hearing.

Sipowicz stays away from the squad and tries to come to terms with his loss. Evidence comes to light implicating Cullinan in more misdeeds and Sorenson turns to Sipowicz for advice. John Irvine is released from hospital, but is reluctant to return to the Precinct.

Danny and Andy catch an assault that looks like it was done by the boys in blue. Jill considers dating her ex-husband.

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.

The squad attends a homicide with seven naked bodies. Jill's ex is arrested.

James passes his sergeant's exam. Jill's ex-husband could be causing problems for Jill.

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.

A young boy is suspected of killing his mother's boyfriend; Fancy realizes that Lt. Abner is severely depressed. Sipowicz has a date with a niece of a friend as a favor; Katie becomes upset at this news.

Andy and Danny reopen an unsolved murder when the body of a small child is found buried within a wall; Medavoy and Jones deal with the owner of a dog who has a bullet in his nose they need as evidence in their case.

Fancy tries to rebuild his relationship with Abner; Andy and Danny investigate the murder of a club owner; Jones takes out his frustration on a man who is suspected of raping and beating a woman.

John Irvin, the department's PAA, helps Andy and Danny with a possible love triangle homicide. Jill and Diane help a mentally challenged woman find the gang who raped her.

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.

Andy and Danny investigate the robbery of an elderly couple; Medavoy and Jones deal with a wealthy woman with a grudge against her former maid; Danny's informant, J.B., seems headed for disaster.

Danny has an emotional crisis; John Irvin helps in a case involving stolen antique clothing; Jill deals with a young woman with small children who steals because of her unemployed, abusive husband.

Jones uses his charm to help Andy and Danny solve the murder of an elderly couple; Medavoy gets involved with an old friend who is having trouble with the Chinese mafia.

A dismembered is found in a barrel. The trail leads Andy and Danny to a mobster who denies knowledge; they later learn he's connected to another murder, his wife who disappeared years earlier.

A young woman tries to convince Jill and Diane that her twin sister has become a victim of foul play. Andy and Danny investigate an immigrant's missing, wealthy and unpopular wife.

The detectives accept the help of a pair of British policeman catch a rapist-murdered who has emigrated from England to NY. Meanwhile, Jones becomes close with a reporter he met during a previous case.

Diane once again finds herself embroiled with Harry Denby who has information about Jill's ex-husband. Greg and Jones discover a home repair scam.

Andy goes into a tailspin when a doctor's visit reveals that Theo may have cancer. Diane and Jill's relationship suffers when info about Jill's ex-husband surfaces. Andy and Danny ponder the impact on Jill's career.

IAB is closing in on Jill. Jill explains the leverage Don has over her. Andy stays by Theo's side as he undergoes tests to determine if he has cancer. Changes are made in the department as fallout over Jill's ex-husband.