While patrolling, police stumble upon an attack in progress at Momma Sue’s restaurant on the pregnant owner. Her husband is arrested and then seeks to have her charged with neglect for drinking during her pregnancy. The detectives discover it's not the first time a child has been exposed to the devastating repercussions of her uncontrolled alcoholism.

A subway commuter is found castrated and bleeding profusely, leading the detectives to discover their "victim" may be the perpetrator in abducting women and forcing them to live in his dungeon for several years as his bride. As the detectives prepare to arrest their victim turned suspect, Benson arrives to find him murdered.

Two garbage collectors discover what they first think is a scene of animal sacrifice but is the body of a young boy who appears to be the victim of a ritualistic killing. The investigation leads to the discovery of international child slavery.

When a young foster child dies due to a religious ritual gone awry, the detectives unravel a mysterious pattern of violence, abuse and murder within one foster care family.

Detectives try to decipher a motive for the strangulation of a Bronx assistant DA in an area where hookers stroll. When the death of the prosecutor looks staged using information gleaned from a co-worker's caseload, Novak endangers her career to obtain a confession.

When it becomes obvious that a forensics expert raped and murdered a student, the investigation focuses on a criminology professor Cragen arrested decades earlier for similar crimes, but is the professor a perpetrator or a victim?

The death of a wealthy senior citizen leads to an investigation that uncovers a serial killer with childhood abandonment issues who targets the elderly.

As Benson and Stabler investigate the disappearance of a mother and her teenaged daughter, they uncover a conspiracy between a corrupt immigration attorney and gangsters running a prostitution ring that is staffed by women they have smuggled into the country and imprisoned as sex slaves.

The entire squad races against the clock to solve the puzzles and uncover the clues scattered throughout the city by a serial killer who is taunting them to find him and the next victims on his list.

The detectives and the district attorney get played first by the teenage murderer of a young boy, and then by the victim's father, who uses his professional expertise to escape punishment for avenging his son's death.

After arguing with Benson about their personal lives, Stabler enlists the help of a former cop turned psychiatrist in apprehending a serial rapist and murderer who attacks disabled women.

Fin is reunited with his own son as he risks his life to save two small children, one caught in the middle of a bodega robbery and the other from the junkie who set the child's mother up for murder and then stole him to use as a front in her scheme to boost materials for her meth lab.

When the body of a seven-year-old child is found, the squad again begins to investigate convicted serial killer Lucas Biggs, believing that he molested and murdered the boy. While Biggs can detail every child he ever molested, he swears that he has no memory of this one. Further investigations show that there is another suspect, but before he can be picked up, someone picks him off.

The squad is at a loss on what to do with a violent homicide when Stabler's son points out that the event is straight out of a video game. Interviewing the game's creators leads them to a former employee, who then leads them (with a few other steps along the way) to a teenage couple who claim to be unable to distinguish fantasy from reality.

When a wealthy couple is found dead in their home, Benson and Stabler soon realise that their deaths are connected to a drug smuggling ring. Eventually the road leads back to the same drug dealers who forced a former assistant district attorney into hiding, and Alex Cabot comes home to face her enemies.

When Denise Eldridge finds her fifteen-year-old daughter Carrie in bed with twenty-one-year-old Justin, she immediately calls police to have Justin charged with statuatory rape. Benson intercedes on behalf of Carrie, calling a children's rights lawyer to assist her, but when Denise turns up dead, Carrie and Justin both end up on the suspect list. Benson tries to get some help from Simone Bryce, but Bryce is obligated to protect her client.

After a young woman is found raped and murdered near a nightclub with five hundred dollars stuffed into her mouth, Benson and Stabler follow the fingerprint trail on the money to Attorney Jason Whitaker, whose sole responsibility seems to be handling the trust for the Duvall family. Soon detectives are convinced that Gabriel Duvall is their rapist, but don't have quite enough evidence to put him away. ADA Novak is working on both the case and a terrified former victim when she is brutally attacked in her office late at night. The crossover continues on Law & Order: Trial by Jury S01:E11 Day (II).

After a young woman's baby is tossed out of a car, Benson and Stabler investigate to find out what happened, and after learning the young woman is addicted to prescription pain killers, their investigation leads them to an elderly woman named Jenny Rogers, who lives with her son Kevin and daughter-in-law Carol. The young woman finally identifies Carol Rogers as the person who solds her the drugs, but when detectives go to confront Carol they find her body, and are left trying to uncover who really killed Carol.

Twenty years after being convicted of the rape of a teenage girl, Ray Schenkel is released, much to the dismay of retired detective William Dorsey. When a teenage girl is raped on the route Schenkel would have taken home, Stabler goes undercover as a recently paroled sex offender so that he can get into the same therapy group as Schenkel, and the same halfway house. Cragen worries that Stabler may be getting in over his head.

Benson saves April Troost from committing suicide, but feels responsible when Troost dies during the trial of the man she accuses of raping her and getting her pregnant. It isn't long before detectives learn that Barclay Pallister wasn't the only man April picked up in a bar who has no recollection of sleeping with her, and the squad realizes that Troost was no victim. Their search takes them from prospective parents looking to adopt her child to the men she drugged and accosted to the sperm center she used to work at, which ends up at the center of the case.

This crossover continues on Law & Order S16E02 Flaw (II).

The discovery of the bodies of two young gay men who were both meth addicts as well as victims of a new strain of AIDS that can kill its victims in less than a year leads to an investigation. Tutuola learns that his son, Ken, is gay, and has difficulty accepting it, even though he and Benson end up going to Ken for help with infiltrating an anti-meth group. The group's leader, Gabriel, soon becomes their top suspect when the squad realises that the two men died because they passed the disease on.

After a six-year-old boy dies in a school shooting, detectives trace the gun used back to a white supremacist's gun shop. Munch and Tutuola both face hatred and prejudice from the major suspects in the case, but their investigation soon takes them from the man who pulled the trigger back to the gun shop owner, who makes no bones about his hatred of anyone who isn't white.

When a teenager and her younger sister end up in the hospital after a day at the park, detectives learn that both girls were abducted from New Orleans after Hurricane Katrina along with a third sister who is still missing. Despite the interference of a local reporter, Jackson Zane, detectives are able to catch the kidnapper, a known pedophile, and recover the girl, but when Alvin Dutch dies and the autopsy determines it was Anthrax, Benson puts everything on the line so that she can get the truth out there.

The team investigates when young Carly Hunter disappears while walking home from school one day. While processing evidence found at the scene, Warner realises that the little girl has leukemia, and they need to get her home as soon as possible to begin treatment. Despite the ransom drop going wrong, the detectives are able to find the little girl thanks to evidence O'Halloran finds at the scene, but as she tells her story to Stabler and her mother, it soon becomes clear that her kidnapper is someone very close to home. Stabler and Warner end up becoming hostages when the kidnapper approaches Jake Hunter directly.

A college co-ed's tale of rape and an unknown pregnancy is suspect after detectives learn that she's been linked to not one but two abandoned newborns.

After the body of Vicky Riggs is found, Benson and Stabler delve into her private life and finally learn that in addition to being a respected lawyer, she was also a stripper. A surveillance photo leads them to Linus McKellen, her boss' husband, who was also having an affair with her. There isn't enough evidence to prove he murdered Vicky, but when Vicky's co-worker at the club, Josie Post, is also found murdered, DNA proves that McKellen's semen was found in her body, despite his disabled wife Tessa's conviction that he would never murder anyone. Suspicion turns on Tessa herself once the detectives interview the only man who seems capable of having committed the murders.

Doug Waverly and Nick Pratt are charged with rape and murder in the disappearance of Canadian student Jennifer Durning after Nick's cousin, Jason King, claims that while he had consensual sex with her that night the other two raped her. A stray pubic hair leads Novak to Keith Willis, a drunk who was paid off by the boys to get Jennifer out of the hotel and who later saw the boys kidnap her, but Willis exactly fit to be a witness as his mind has gone after years of alcohol abuse. Jason King disappears. Although they are able to find a bug in Donnelly's office, they are not able to prove that it was placed there by Pratt or Waverly. Judge Donnelly is forced to dismiss the case against the two boys since there is no case without Jason's testimony.

A manhunt ensues when Victor Paul Gitano, a recently released sex offender, kidnaps two children after killing the rest of their family. Benson and Stabler pursue Gitano only to find their own relationship challenged as both experience opportunities where they put their personal relationship ahead of their job. After having her throat slashed, Benson requests for a new partner when she hears what Stabler has to say about their relationship and their job.

Stabler teams up with an new partner to investigate a sexual attack on Jessica DeLay, a sixteen-year-old girl who worked tobacco stings for the Department of Health and face an overweight young brother and sister who claim it was an act of vengeance for Jessica and her friend, Tommy Strahan, beating up their older brother Rudi for being fat. Stabler and Blaine arrest DeLay and Strahan, but when the two are released due to lack of admissable evidence, Rudi Bixton takes justice into his own hands.

Stabler and his new partner, Dani Beck, investigate the rape of a young woman named Nikki, who soon identifies a prominent lawyer, Martin Trenway, as her rapist. The squad has difficulty making the charges stick until another victim comes forward, but her testimony cannot be proven reliable. Determined to get at Trenway, Beck tracks down a woman from his past who holds the key to convicting Trenway, if they can convince her to expose the truth.

After a van containing two young children ends up in the river, Beck finds herself drawn to the young girl, Eden, and the investigation into a tape found in the vehicle turns up a mysterious death involving a controversial attachment therapy technique. Beck tries to do the right thing by saving Eden, only to find herself torn when it seems as though there is nothing she can do to help. The investigation into the rebirthing turns up a foster family who abuses the children in their care, but not all of the children agree that it was abuse.

Stabler heads to see terminal cancer patient Judson Tierney after a request from his parish priest, and soon realizes that Tierney has a story that he is dying to tell but only wants to tell to his estranged daughter. With Benson keeping an eye on Tierney, Stabler looks into the man's past and learns that he was once involved in a series of unsolved bank robberies, and that he has been keeping a secret about his daughter for over twenty years.

Stabler ends out being out of commission after a perpetrator high on PCP throws him through a window at the station, so Benson teams up with Munch and Tutuola to investigate a mysterious packet of photos. The photographs lead them to both a suspected child pornographer and a junkie burgler, but after Benson takes ill during the investigation, the team realises that there is more than child pornography at stake as their investigation soon reveals that Seth Millstead wasn't into little boys at all, but had been using the tenants of the apartment building in an experiment for a new pesticide.

Stabler finds himself drawn into a case where a young mother has committed suicide after her baby goes missing. The case leads to questions for Benson about her own family history.

Benson finds herself in a bad situation when she has a closer link to a suspect than she ever could have expected.

Stabler and Benson suspect a charismatic preacher in a case of murder until his wife provides them with another viable suspect.

When Detective Benson gets into the middle of an investigation of her brother Simon Marsden, the case begins to threaten her career. As Simon makes a run for it, Benson investigates further into his family life, and begins to question whether or not she was the product of a rape in the first place.

A woman's murder appears to be the result of a professional hit, when her fiancé receives death threats, apparently resulting from his CIA career. Elliot, investigating this, finds that the man may not be all that he seems.

Benson comes under fire from fans of a convicted serial killer after a body turns up that greatly resembles his work.

Novak confronts ghosts from her past while handling the trial of a schizophrenic serial rapist, who seriously injured Stabler.

When a polygamist's wife is murdered, he believes it's related to a recent criminal case he was testifying in, but detectives believe it may be connected to his culture.

Benson and Stabler investigate a tutor after a student is beaten and sexually assaulted, but their investigation soon leads them to another student.

An engineer plays a series of mind games with Benson and Stabler.

When a pregnant woman's body is discovered in a burned-out brownstone, the investigation turns to a family of coffee importers.

The squad is left at ends when Lake is caught in a gunfight and later takes a witness hostage.

Stabler and Munch uncover a chastity club and a group of girls with a pregnancy pact at a high school where they came to investigate the death of a student.

Benson finds herself going the extra mile to protect a woman abused by her spouse. The investigation turns up information regarding a long-forgotten case of 2nd degree murder and escape.

When a pediatrician convicted of abusing patients is found dead, Stabler and Benson investigate and soon find ADA Cabot has a reason for becoming involved in the case.

A single murder suddenly turns into a scene with three bodies, leaving Benson and Stabler to work with a strip club owner to find a murderer whose motive may be more about righteousness than perversity.

A grandmother reports that her 2 year old granddaughter has disappeared, but the Amber Alert fails to yield progress. The detectives then move their attention over to her young irresponsible mother as their prime suspect.

A teenage girl who sent text messages containing nude pictures of herself is found beaten up. She next faces a harsh sentence from a judge after being arrested for producing and distributing child pornography.

A murder in Central Park that involves a tourist puts the SVU on high alert, but when the suspect they've brought in for questioning escapes, Munch has to reach out to an ex-wife in an effort to prevent another killing that's closer to home.