A fire at a boarding school shakes up Lt. Severide; Lt. Casey tries to help Dawson; Mills looks into his father's past.

Boden pushes his team to pull it together in the aftermath of the explosion; Casey works to track down a missing Severide; Newhouse brings news about one of Mills' relatives; Herrmann and Otis come up with new goals.

Severide comes back to work, but isn't his usual self; Mills discovers more information about his father's family; Herrmann asks Molly investors to share ideas that could help turn the business around.

The members of Firehouse 51 and the Austin firehouse clash when trucks collide on the way to a call; Boden comes up with a plan to get Dawson her badge; Mills faces his past and future; the Molly's group hits a speed bump starting the food truck.

Detectives probe what looks like the ritualistic sacrifice of a 7-year-old Nigerian boy and uncover a slave-smuggling ring.

Family members become murder suspects when DNA tests on the body of a 16-year-old girl reveal evidence of incest.

A child dies in the emergency room after passing out during a prayer vigil at a late-night church service.

After photos of Casey and Severide jumping off the roof during a heroic rescue make the front page of the newspaper, Boden unwillingly agrees to have the photographer chronicle a day at the firehouse.

After responding to a car accident, Casey and Dawson become skeptical when a domineering husband continues to answer for his injured wife; Cruz is frustrated with Herrmann and Mouch; Kidd uncovers something meaningful to Severide.

Otis and Kidd's lives are put in jeopardy when there's gunfire inside a house; Dawson comforts Brett during an especially trying time; Casey begins to notice that romance might be going on within the firehouse.

The crew struggles to come to terms with an injury to one of their own; a temporary replacement must be dealt with; Boden ponders some interesting news; Kidd has a hard time keeping a secret.

Boden has a lapse in judgment in the aftermath of rescuing a young boy; Kidd struggles to win the approval of Severide's mom after a surprise visit; Otis takes on new responsibilities at the firehouse.

When the FBI takes over the firehouse for an undercover mission, Casey and Severide volunteer to assist with the investigation; Kidd attempts to help Severide come to terms with recent developments he's been managing.

The team responds to a residential fire at a property belonging to a drug cartel; a hefty amount of money is missing from the crime scene; Kidd makes a big decision.

From O2 Arena in Prague, Czech Republic.

After saving a girl from a car accident, Boden and Severide receive a surprise package; Brett struggles to keep quiet about Cruz reacquainting with his now-married high school sweetheart; a crisis brings Bria back into Dawson's life.

Lt. Severide is shocked when Rene Royce resurfaces; Casey comes up with a plan to help Chief Boden in his latest pursuit; Kidd regrets a decision she made regarding Severide; Herrmann clashes with Lt. Colannino over their son's basketball team.

Boden takes a big step in the pursuit of a major career decision; Kidd becomes increasingly distrustful of Renee's motives with Severide; Herrmann has trouble bouncing back after a tragedy.

Boden's chances for a promotion are met with potential complications; Dawson and Casey don't see eye to eye on an important decision; Kidd finds herself struggling to find time with Severide; Brett and Dawson respond to a tough call.

Reeling from Dawson's continued absence, Casey makes a rash move during a rescue, while Brett struggles with a series of replacement partners; meanwhile, Boden faces scrutiny from Commissioner Grissom, who sends his deputy to monitor Firehouse 51.

Severide investigates a victim's motives after rescuing him and his child from a car accident; Boden clashes with Gorsch over appointing a new lieutenant; Mouch reaches out to a fellow firefighter; Cruz discovers he has a new admirer.

Herrmann faces hazing in his new role as lieutenant; Foster suspects a young gymnast's injury is more than meets the eye; Severide is jealous of Kidd's best friend; Casey and Boden turn to P.D. after treating two victims who have similar injuries.

Casey helps a reporter uncover the truth behind a trailer park fire; Boden attempts to make peace with Grissom; Hermann, Otis and Kidd take action when Molly's receives a bad Yelp review; Severide reaches out to his father for a favor.

Gorsch continues his reign of terror at Firehouse 51, taking over Boden's morning meeting and going out on calls in Boden's place; Brett and Foster respond to a call where a Halloween prank has turned deadly serious.

Benson and Stabler begin hunting for a serial pedophile after a 5-year-old girl's decomposed body is found in the trash.

A professor (Billy Campbell) accused of sexual assault volunteers to submit a DNA sample for testing, but the case turns into a he-said, she-said standoff.

After recovering from being shot during a robbery, Fin returns to the narcotics division to keep a promise he made to locate a missing person.

Stabler struggles to keep his emotions in check as he interrogates a man (Matthew Modine) suspected in the murder of a teenage girl -- a man he once let get away on similar charges.

While examining a 9-year-old girl after a car crash, doctors find that she has been molested and call in Benson and Stabler, who learn that the girl's attacker has killed another child.

Detective Benson goes under cover to combat terrorist activities; a victim refuses a rape kit.

A tourist is found dead with the word "guilty" written on her forehead; Detective Munch is forced to ask his ex-wife (Carol Kane) for help.

A woman who is sexually assaulted by a masked man believes her attacker is the same man who was jailed for stalking her; Tucker thinks about retirement and a future with Benson.

Barba's efforts to make an arrest in a case involving pornographic photos is stalled when several suspects come down with the measles; Amaro receives distressing news about his son.

The SVU searches for three women suspected of drugging and robbing wealthy men; the case leads to personal connections for both Benson and Kat.

The squad is on edge as Carisi waits for a verdict in Maddie's kidnapping case; Benson tries to help the Flynn family pick up the pieces of their broken life.

The detectives uncover a shocking theory as they work to learn the identity of a man Rollins arrested for exposing himself in the park; Detective Benson finds herself in mortal danger.

The SVU squad searches for Detective Benson and her abductor (Pablo Schreiber).

A young woman takes a man hostage at gunpoint; Benson makes an attempt to defuse the situation; the team discovers the shocking motive behind the abduction.

Benson's suspicions about a kidnapping victim uncover a dangerous criminal network prepared to silence anyone who gets in its way.

Benson is assigned a 24/7 security detail when William Lewis (Pablo Schreiber) escapes from prison and starts killing again; Benson must decide how much she is willing to sacrifice to save a child's life.

Sgt. Olivia Benson is investigated by Internal Affairs after William Lewis' death; as pressure mounts, Olivia has to choose between her convictions and her badge.

When a 9-year-old girl calls for help, claiming to be held hostage in a strange room for four days, many believe it is a prank, but Detective Benson feels otherwise.

Benson and Stabler suspect the drug-dealing uncle of a girl (Shareeka Epps) found raped and beaten, but the theft of the rape kit identifying her attacker leads them to a crooked prison guard.

Carisi attempts to put aside his role as prosecutor to serve as a witness in a trial; Benson tries to help a rape survivor struggling with her recovery.

When the SVU and the 2-7 uncover a pattern of rape and murder targeting marginalized women, Carisi and ADA Price team up to charge the suspect with multiple crimes.

Amaro asks the SVU for help in clearing a convicted man's name and brings a figure from Benson's past back into her life.

When a woman turns her husband in for possessing child pornography, the case is complicated by a sudden death; Benson tries to reconnect with a victim she saved.

Detective Benson goes under cover to combat terrorist activities; a victim refuses a rape kit.

The detectives uncover a shocking theory as they work to learn the identity of a man Rollins arrested for exposing himself in the park; Detective Benson finds herself in mortal danger.

The SVU squad searches for Detective Benson and her abductor (Pablo Schreiber).

Benson is assigned a 24/7 security detail when William Lewis (Pablo Schreiber) escapes from prison and starts killing again; Benson must decide how much she is willing to sacrifice to save a child's life.

Sgt. Olivia Benson is investigated by Internal Affairs after William Lewis' death; as pressure mounts, Olivia has to choose between her convictions and her badge.

While searching for a child molester who has abducted three young children orphaned by Hurricane Katrina, detectives learn that the suspect also possesses a deadly strain of anthrax.

ADA Novak calls upon detective Benson, still under cover in Oregon, to present evidence that will strengthen the case against a brutal rapist.

Stabler and Beck (Connie Nielsen) try to get a young prostitute to testify against her pimp (Michael Kenneth Williams) after a trio of murder victims with matching tattoos leads them to a teenage prostitution ring.

An overzealous reporter's accusation leads a despondent new mother (Ashley Williams) to kill herself; detectives continue to search for the mother's missing child as time gets shorter.

A successful preacher (Tim Daly) is the prime suspect in a murder case, until his wife (Kathy Baker) provides detectives with a taped conversation.

Four honor students are arrested for criminally negligent homicide when another student dies at a party that they threw.

When detective Benson gets into the middle of an investigation of her brother, the case begins to threaten her career.

When a teenage boy is killed in what appears to be a play fight, the victim's friend claims he filmed the death.

Benson and Stabler investigate the case of a woman (Cynthia Nixon) with multiple personalities who may have abused and killed her daughter; the detectives must adjust to sweeping changes in the SVU.

When a video gamer goes missing, Benson and Stabler use the woman's avatar to track down her kidnapper before it is too late.

The only witness to the beating of a woman (Judy Kuhn) is her daughter (Paulina Gerzon) who has Williams syndrome.

When a collegian is found dead in her formalwear, detectives recognize the body's mutilation as that of the copycat of a serial killer; a woman goes missing, and comic books are the key to finding her.

A nanny's Internet love interest (Steven Bauer) is the obvious suspect when she is found murdered, but detectives look more closely at her employers (Mark Valley, Anastasia Griffith) when skeletons are found in their closet.

When a polygamist's wife is murdered, he fears his testimony in a separate case may have led to her death; a Web site exposes potential witnesses.

A wealthy teen is found murdered in New York's Central Park, and the clues lead to a gang of homeless children.

A woman's body is found in a park alongside a man with a bullet in his head.

A young Jewish boy is brutally attacked, and the clues lead to a disturbed classmate as more victims begin to come forward.

The theft of fertilized embryos from a sperm bank leads the detectives to two publicity-hungry extremists.

The life of a law-abiding engineer (Robin Williams) goes terribly wrong, leading him to challenge authority and to urge others to do so as well.

Detectives suspect a wealthy family of coffee traders when a pregnant woman is found raped and murdered in her burned-out loft.

While searching for a child molester who has abducted three young children orphaned by Hurricane Katrina, detectives learn that the suspect also possesses a deadly strain of anthrax.

As detectives investigate a mother of two's sudden disappearance, her friends and family reveal she feared she was being stalked.

After an apparent home invasion in Minnesota leaves Heidi Firkus dead and her husband, Nick, hospitalized, detectives learn the young couple was facing financial troubles.

After an apparent home invasion in Minnesota leaves Heidi Firkus dead and her husband, Nick, hospitalized, detectives learn the young couple was facing financial troubles.

Sam, Callen, Deeks and Kensi spend Christmas on an aircraft carrier investigating an NCIS special agent's death; Eric and Nell celebrate the holidays at headquarters; Hetty goes on a trip.

One of Deeks' former defendants is targeted for uncovering information that could dismantle a car shipping operation with ties to a global terrorist ring.

Suspicious of a cover-up, a Marine's widow asks Sam and Callen to investigate her husband's last battle; the team thinks another evaluation is on the horizon.

The theft of fertilized embryos from a sperm bank leads the detectives to two publicity-hungry extremists.

Detectives suspect a wealthy family of coffee traders when a pregnant woman is found raped and murdered in her burned-out loft.

When the corpse of a famous astronaut is found floating in the waters of Battery Park, Detectives Benson and Stabler think the murder may be connected to a string of serial rapes; at a dead end, Stabler seeks advice from an old mentor (James Brolin).

A woman is found in Riverside Park, beaten and raped with no memory of what happened; during the investigation, Olivia must face the fact that she still thinks like a victim.

Benson and Stabler begin to question the story of a missing teenager (Ellen Woglom) who returns home after four years, claiming to have been kept as a sex slave in a concrete cell.

A pediatrician found guilty of sexually assaulting four of his patients is murdered; after three years in the Witness Protection Program, Alexandra Cabot returns.

A former dancer (Carol Burnett) is caught up in the murder of a young couple.

A mute girl is raped and beaten, and her drawing of her attacker resembles a local priest.

An artist's shocking death leads detectives to uncover a long string of murders by an elusive serial killer.

When a 2-year-old girl goes missing, her irresponsible young mother (Hilary Duff) becomes the prime suspect.

When a crime scene photo of a murdered teenage girl quickly becomes an Internet phenomenon, the police initiate an investigation with the victim's father, who points the detectives toward his daughter's therapist.

A case becomes much more complicated when racy photos of a 15-year-old rape victim are leaked on the Internet; Stabler's son is drawn into a series of compromising events by his best friend.

DNA evidence points to Benson as the prime suspect when the sexually mutilated body of a member of a biker gang is found in the park; Stabler fights to prove his partner's innocence.

Detectives Benson and Stabler search for a man who is knowingly spreading HIV.

Detectives Benson and Stabler speak to the daughter of a powerful couple who were found murdered in their bedroom.

Several young prostitutes are found dead with homemade prayer cards attached to their bodies; Benson is forced to make a difficult decision.

When the corpse of a famous astronaut is found floating in the waters of Battery Park, Detectives Benson and Stabler think the murder may be connected to a string of serial rapes; at a dead end, Stabler seeks advice from an old mentor (James Brolin).

A woman is found in Riverside Park, beaten and raped with no memory of what happened; during the investigation, Olivia must face the fact that she still thinks like a victim.

Benson and Stabler begin to question the story of a missing teenager (Ellen Woglom) who returns home after four years, claiming to have been kept as a sex slave in a concrete cell.

A pediatrician found guilty of sexually assaulting four of his patients is murdered; after three years in the Witness Protection Program, Alexandra Cabot returns.

A former dancer (Carol Burnett) is caught up in the murder of a young couple.

Upton's dogged pursuit of a missing teenage girl leads the team into a dark web of human trafficking; chief O'Neal becomes involved with the unit's investigation when it becomes evident his son, Sean, has a connection to the missing girl.

Atwater's reactions during a tense arrest are called into question; the team must dig in to uncover key evidence that could aid in the ongoing investigation and clear Atwater's name.

When actionable evidence finally surfaces against Sean O'Neal, Upton and the team work relentlessly to build a case in secret; they discover Sean is more elusive and dangerous than anticipated.

To distract Intelligence from the investigation into his son, Chief O'Neal forces the team to handle a "dead fish" case; when that dead fish turns into a complicated heater case, Burgess is thrown back into difficult memories from her past.

After a shocking discovery, the team begins closing in on Sean O'Neal with every shred of evidence they can find; determined to keep his son out of prison, Chief O'Neal hires a lawyer.

A series of brutal home invasion robberies finds the team paired with Detective Borkowski, an old friend of Ruzek's, to work the case; things get complicated for Torres when it becomes clear Borkowski has a vastly different policing style.

A shocking ambush at a funeral leads the team into a heated investigation to find the shooters; much to Atwater's surprise, he must rely on someone from his past to help in the investigation, dredging up old memories and revealing new truths.

A fire breaks out in an accountant's office and a car crashes into a "living funeral"; Athena is shocked when a suspect dies in her custody minutes after she arrests him; Buck is attracted to a death doula; Maddie and Chimney are audited by the IRS.

The 118 race to rescue two roommates desperately trying to find a needle in a haystack at a landfill, and help a woman whose nightmare dream suddenly becomes a painful reality; Athena and Maddie team up to find a missing boy in a crowded mall.

A wedding proposal tragically intersects with a bank robbery; a bride is literally stuck on her way to the altar; Athena talks a victim through her grief; Buck finds a surprise visitor on his doorstep.

A series of freeway car accidents leads to a catastrophic overpass collapse that endangers the lives of civilians and members of the 118.

Athena and Bobby set off on their honeymoon cruise, but when duty calls, their vacation is put on hold; a fighter jet traps a civilian; an unusual incident leaves a couple stuck together.

The disastrous cruise continues when Bobby and Athena respond to the ship's explosion, racing to aid injured passengers; Hen questions her instincts in a life-taking call and grows concerned about Athena and Bobby's whereabouts.

With each moment becoming critical as the ship flips upside down, Athena and Bobby take charge, seeking methods for rescue while navigating efforts to guide survivors to safety; Hen defies protocols in her search for Bobby and Athena.

From Baxter Arena in Omaha, Neb.

Upon her return to shore, Athena's son finds himself in trouble with the law; Buck grows envious as Eddie forms a close bond with someone else; the team rescues a woman who's stuck on receiving a rose at an iconic mansion.

Hen and Karen welcome a new addition to their family; a call unfolds involving a person's limb that's taken on a mind of its own; Eddie and Marisol take a closer look at their relationship; Buck navigates his new feelings.

After years of anticipation, Maddie and Chimney's long-awaited wedding day arrives; when the groom mysteriously vanishes, the 118 races against time to ensure he doesn't miss the most crucial day of his life.

Maddie and Athena investigate a case surrounding an abducted mother and child; Hen and Karen learn more about Mara's family history; Eddie grapples with unresolved feelings for someone from his past.

A fire breaks out in an accountant's office and a car crashes into a "living funeral"; Athena is shocked when a suspect dies in her custody minutes after she arrests him; Buck is attracted to a death doula; Maddie and Chimney are audited by the IRS.

Josh Mankiewicz reports on the mysterious disappearance of a Colorado rancher, whose friends think something isn't right and spend years fighting for answers.

After a mother is found murdered in her Virginia home, her son embarks on a 20-year quest for justice that leads him down a dark and twisted path.

After a mother is found murdered in her Virginia home, her son embarks on a 20-year quest for justice that leads him down a dark and twisted path.

A man is found stabbed to death after a night in a strip club; a drop of blood on a bedspread becomes critical evidence five years later.

Callen must infiltrate a network of Chechen terrorists who are recruiting fighters to join their cause as they plan their next attack on the U.S.

The members of the team go under cover as an elite tactical force in order to investigate a crime linked to a cartel kingpin.

An investigation leads the team to question the only survivor of a terrorist organization; Deeks and Kensi follow a trail into the woods.

While investigating the death of a teenager, detectives Elliot Stabler and John Munch discover a group of girls in a pregnancy pact.

Elliot Stabler puts his marriage at risk when he goes undercover to gain access to an animal-smuggling ring, with Olivia posing as a prostitute.

After a young girl is kidnapped, Elliot Stabler must work with a recently paroled convict to get her back.

Officer Nate Kendall (Wentworth Miller) helps a woman in trouble and gets roped into investigating a rape; when evidence connects multiple cases, the team realizes there may be a serial rapist responsible.

A lesbian-rights activist (Kathy Griffin) claims a woman's death was the result of police neglect; when more women from the activist's group are attacked, it becomes clear that someone has a plan to bring down the group.

When a disabled woman is beaten and raped, Benson and Stabler think someone close to the victim is responsible.

Benson and Stabler discover that a murder victim had been involved in the fight to expose questionable practices in the meat-packing industry.

On his 11th birthday Harry Potter learns he is the orphaned son of two wizards and is invited to attend Hogwarts School of Witchcraft and Wizardry where he embarks on the adventure of a lifetime.

Mario and Luigi go on a whirlwind adventure through Mushroom Kingdom, uniting with a cast of familiar characters to defeat Bowser.

Harry Potter returns to Hogwarts for his second year, but dreadful things begin to happen at the school. Harry, Hermione and Ron do everything wizardly possible to solve this deadly mystery.

While investigating the death of a teenager, detectives Elliot Stabler and John Munch discover a group of girls in a pregnancy pact.

Elliot Stabler puts his marriage at risk when he goes undercover to gain access to an animal-smuggling ring, with Olivia posing as a prostitute.

After a young girl is kidnapped, Elliot Stabler must work with a recently paroled convict to get her back.

Officer Nate Kendall (Wentworth Miller) helps a woman in trouble and gets roped into investigating a rape; when evidence connects multiple cases, the team realizes there may be a serial rapist responsible.

Dawson tries to find balance with Lt. Casey; Mills deals with a future without the squad; Severide faces his demons; the Molly's crew meets with a city inspector.

Casey deals with the fallout from his sister's divorce; Dawson and Mills settle into their new roles at the station; Brett can't decide what she wants to do; the Molly's crew struggles to get the food truck started.

Casey helps his sister and faces down his corrupt brother-in-law; Brett goes out of her way to assist a mother in need; Mills learns about unlicensed private investigation; Dawson starts training with Herrmann.

Severide wants further investigation when a homeowner saved from a fire is found clutching a suspicious box; Molly's II needs a chef.

The members of the firehouse spring into action when a helicopter explodes over a densely populated area, scattering debris; a dangerous man corners Brett.

On his 11th birthday Harry Potter learns he is the orphaned son of two wizards and is invited to attend Hogwarts School of Witchcraft and Wizardry where he embarks on the adventure of a lifetime.

Harry Potter returns to Hogwarts for his second year, but dreadful things begin to happen at the school. Harry, Hermione and Ron do everything wizardly possible to solve this deadly mystery.

Mario and Luigi go on a whirlwind adventure through Mushroom Kingdom, uniting with a cast of familiar characters to defeat Bowser.

The superstars of World Wrestling Entertainment display their skills and athleticism, as scores are settled and enduring rivalries play out in the ring.

Harry, Ron and Hermione return for a third term at Hogwarts. But Harry's fate, and that of the entire community of wizards, looks bleak when the infamous Sirius Black escapes from prison.

A mute girl is raped and beaten, and her drawing of her attacker resembles a local priest.

A lesbian-rights activist (Kathy Griffin) claims a woman's death was the result of police neglect; when more women from the activist's group are attacked, it becomes clear that someone has a plan to bring down the group.

When a disabled woman is beaten and raped, Benson and Stabler think someone close to the victim is responsible.

Benson and Stabler discover that a murder victim had been involved in the fight to expose questionable practices in the meat-packing industry.

Harry, Ron and Hermione return for a third term at Hogwarts. But Harry's fate, and that of the entire community of wizards, looks bleak when the infamous Sirius Black escapes from prison.

During Harry's fourth year at Hogwarts a competition will be held between three schools of wizardry, and contestants will be magically chosen for the very dangerous event.

A summer has passed since Harry's encounter with the Dark Lord. With the wizard community in peril the future of magic may depend on Harry and a secret society known as The Order of the Phoenix.

While Death Eaters emboldened by the return of Lord Voldemort wreak havoc in both the Muggle and Wizarding worlds, Harry suspects new dangers lie within Hogwarts.

In the first part of the seventh and final adventure, Harry, Ron and Hermione set out on their perilous mission to destroy the secret to Voldemort's immortality and destruction: the Horcruxes.

Making their final stand upon the ramparts of Hogwarts School of Witchcraft and Wizardry, Harry Potter, Ron and Hermione face their greatest foe and make a sacrifice on their journey.

The SVU faces the fury of social media fans when they arrest two popular influencer brothers.

Stabler and Beck (Connie Nielsen) try to get a young prostitute to testify against her pimp (Michael Kenneth Williams) after a trio of murder victims with matching tattoos leads them to a teenage prostitution ring.

An overzealous reporter's accusation leads a despondent new mother (Ashley Williams) to kill herself; detectives continue to search for the mother's missing child as time gets shorter.

A successful preacher (Tim Daly) is the prime suspect in a murder case, until his wife (Kathy Baker) provides detectives with a taped conversation.

Four honor students are arrested for criminally negligent homicide when another student dies at a party that they threw.

After a high-school student is brutally assaulted, detectives interview a suspect who becomes enraged and attacks Detective Tutuola.

When a coed dependent upon financial aid is found dead with a large sum of cash, detectives suspect her wealthy roommate.

When a mob lawyer (Cary Elwes) and his wife are attacked, their young son is the only witness; when he comes out of surgery, the man vividly remembers his daughter at the crime scene.

When an envelope containing a picture appears at the precinct, the detectives pick up the trail of a child pornographer.

A local police captain (Kim Delaney) questions Benson when she investigates a rape outside her jurisdiction.

Detectives believe a woman's death to be a professional hit when they discover that terrorists have threatened her CIA-agent fiancé (Dylan Walsh).

A man (Chris "Ludacris" Bridges) connected to Fin's son goes on trial for the murders of a woman and her baby.

Detective Stabler's job and personal life intertwine when his daughter Kathleen becomes a suspect in a case; after learning that Kathleen may have an emotional disorder, he turns to his estranged mother (Ellen Burstyn) for help.

A teen named Eric admits to looking at a Website in an attempt to curb pedophilic urges toward his stepbrother; when Eric goes missing, the stepfather (Tom Noonan) is questioned.

When a woman goes missing, her boyfriend points Detectives Benson and Stabler in the direction of convicted bank robber Callum Donovan (Stephen Rea); to comprehend the impact of solitary confinement, Stabler experiences it.

A teenager is beaten after nude pictures of her are spread throughout her high school.

Investigation into the death of a young boy leads to a gambling ring.

Detectives Benson and Stabler investigate when a woman scheduled to testify in a high-profile rape case is murdered.

The squad rallies around Det. Stabler to find the suspect behind a threat to his family.

Carisi tries Richard Wheatley for the murder of Kathy Stabler; Benson finds herself at odds with a friend when Barba agrees to take the case.

Benson and Carisi are baffled when a series of assaults have the same M.O. but different DNA at each crime scene; Muncy believes Elias Olsen has struck again and is determined to prove it.

In the search for a revenge-for-hire crime ring, Benson and Stabler combine forces on a case that has now spread globally; Fin and Bruno help a victim assaulted a second time; Jet's plan to hack the dark web backfires and puts the team in danger.

While Fin and Phoebe make wedding plans, Benson and Rollins try to help a homeless single mother who's being trafficked in exchange for safe housing.

Benson and Rollins must contend with the FBI and the Organized Crime bureau when a rape victim identifies a dangerous mobster as her assailant.

After a high-school student is brutally assaulted, detectives interview a suspect who becomes enraged and attacks Detective Tutuola.

When an envelope containing a picture appears at the precinct, the detectives pick up the trail of a child pornographer.

Detectives believe a woman's death to be a professional hit when they discover that terrorists have threatened her CIA-agent fiancé (Dylan Walsh).

Detective Stabler's job and personal life intertwine when his daughter Kathleen becomes a suspect in a case; after learning that Kathleen may have an emotional disorder, he turns to his estranged mother (Ellen Burstyn) for help.