Briscoe and his new partner, Det. Reynaldo Curtis, investigate the murder of a young girl who disappeared between school and her music lesson, with a blurry film from an ATM machine as their clue.

Briscoe and Curtis have a hard time finding cooperative witnesses when investigating the murder of a college student at a rough biker bar.

McCoy and Kincaid clash over the death penalty as McCoy prosecutes a man who murdered an undercover cop during a drug bust.

A triple murder at a magazine publishing company leads to a case of sibling rivalry, a protective matriarch and a corrupt judge.

When the detectives solve a series of murders committed by a holdup team in ski masks, McCoy must determine whether a young woman found with them is an unwilling hostage, or an active participant in the crimes.

Briscoe and Curtis try to solve a co-ed's murder after a graphic description appears online, while McCoy finds himself up against a lawyer who is reluctant to reveal elements of her client's past.

The investigation into a prostitute's murder leads to a married plastic surgeon as the obvious suspect, but Kincaid has a hunch that an elaborate frame-up is in play.

A mother claiming that her baby was kidnapped while she was at confession retraces her steps and actions with Curtis, which raises legal questions later when her attorney introduces a unique defense.

A hidden anti-Semitic message in a high school yearbook offers a clue to an art teacher's murder and leads to a case that matches McCoy against "Klan lawyer" Roy Payne.

The victim in a 30-year-old rape and stabbing case is fearful when information received by Briscoe and Curtis creates the possibility of a new trial for the perpetrator.

The death of a show horse leads to a trial involving insurance fraud, a sting operation and a wealthy woman's disappearance.

McCoy finds that his career is on the line when his former female assistant and ex lover accuses him of forging evidence that helped put an innocent man in prison.

A subway station gas attack, similar to one that took place in a Baltimore church five years earlier, brings Baltimore detectives Tim Bayliss and Frank Pembleton to New York to assist Briscoe and Curtis.

This crossover continues on Homicide: Life on the Street S04E12 For God and Country (II).

Paul Robinette places the system on trial when he defends a young black woman accused of kidnapping her biological baby from his white, adoptive parents.

A jogger killed in Central Park turns out to be the second wife of a former comedy club owner, who was acquitted of killing his first wife. And convicting him this time may hinge on tracing the path of a Columbian coin used as a subway token slug.

A down-on-his-luck ad executive becomes the prime suspect when his wife and son are killed, and his daughter wounded on a night that he claims was spent drinking.

When a young attorney is murdered shortly after he decides to file a sexual harassment claim against his employer, Briscoe and Curtis quickly discover that the alleged harasser and his wife each have an excellent motive for murder.

The investigation into the murder of a model with a passion for cocaine and partying focuses on the men in her life -- a nightclub owner, a basketball player, a photographer and a limousine driver.

A woman is shot while sleeping, and the investigation leads the police to a boy whose crack-addicted mother has entrusted him to a dealer's care.

After a college co-ed's body is found, the detectives look for a campus rapist, but the medical examiner's report puts them on a different path, one involving prostitution.

The investigation into multiple homicides at a clothing store leads to the arrest of a schizophrenic who presents McCoy with a formidable opponent when he decides to represent himself.

After an infant is found dead in his crib, it's determined he was poisoned, and all evidence points to the child's au pair.

After Briscoe, Curtis, McCoy, and Kincaid witness the execution of a criminal they brought to justice, their unique reactions to the event culminate in personal tragedies for each of them.

McCoy's new second chair, ADA Jamie Ross, is determined to prosecute as harshly as possible a carjacker who took the life of a teacher as she pleaded for her life on an audio tape discovered at the crime scene.

The cops tackle identifying a corpse left in an elevator, and McCoy finds his prosecution of the suspect later hampered by a vindictive judge who resents Ross's in-court rebuke for sexual harassment.

Briscoe and Curtis have to break the mutual alibi of two girlfriends as they try to find the killer of a young black man, whose angry parents pressure McCoy to indict a young woman who claims the victim had raped her.

Briscoe and Curtis's investigation of the murder of a rare coin dealer nets them a millionaire as a suspect, but Ross has to play detective too as the DA's office tries to establish a provenance for the missing coin collection.

Curtis, angered by the attitude of an old colleague of Briscoe's, looks beyond the findings of an IAB investigation and turns up evidence of police corruption that puts the DA's office into competition with an ambitious judge and Briscoe under investigation for stealing evidence from a police lockup.

The murder of a janitor in a university laboratory building leads back to a student employee whose participation in a drug study may have prompted the crime.

The murder of a deadbeat father whose son is dying of leukemia presents McCoy and Ross with a sympathetic suspect and a moral dilemma.

The murder of Richard Speigel, chief financial officer for an exclusive, family-owned department store goes from the sitting room to the bedroom and into the board room as suspicion shifts from co-workers to family members.

The case against Huey Tate, a young man accused of shooting the well-known leader of the African-American Congress comes undone when the New York authorities learn that their chief witness was once an informant for the FBI, and is still under their protection.

The sidewalk shooting of a young husband uncovers the fact that his wife's first husband died in a inadequately investigated accident, and that they may have been having an affair before it happened.

The detectives face a difficult struggle getting witnesses to a girl's apparent suicide to come forward while Ross tries to prove that a known bully is the one really responsible for her actions.

An unpromising case of murder suddenly develops new leads when the cops explore the possibility that the victim was mistaken for someone else. McCoy walks a thin line in the matter of ethical conduct as he tries to make a case against a lendor who uses unscrupulous methods to collect the money owed to him.

The discovery of a would-be thief refocuses a murder investigation, leaving the prosecutors the task of making a conspiracy case against the deceased's attorney and the pretty young widow.

The murder of an ex-cop with a penchant for blackmail and illicit sex brings feminist lawyer Lanie Stieglitz into court against McCoy to defend a suburban wife and mother.

A headless corpse fished out of the river sends Briscoe and Curtis out to Los Angeles to obtain a blood sample from their chief suspect while McCoy and Ross back in New York try to obtain a court order for the procedure.

Back in New York with their suspect, Briscoe and Curtis try to pin down his schedule on the night of the murder, but find instead that another man was in the area at the right time and more importantly, might have a motive for the crime. But after the issuance of a new arrest warrant, McCoy and Ross have to fly to LA to defend their warrant against attacks by the man's defense counsel, Ross's former husband Neal Gorton.

The trial of Eddie Newman begins but the prosecution's chances of conviction are hampered by a "dream team" of defense attorneys, Gorton's personal pressures on Ross, the public questioning of the relationship between Curtis and Lisa Lundquist, and a surprise accusation.

McCoy becomes obsessed with nailing a serial rapist recently released on parole and pushes the cops perilously close to harassment as he attempts to connect the man with a new rape and murder matching his previous M.O.

The cops' best hope of finding a kidnapped hired car driver alive is one of the armed robbers who grabbed him after a job, but the immunity deal he demands in return would effectively preclude his prosecution for the shooting death of an off-duty cop, placing McCoy in a difficult position as he seeks to placate the cops, who want the guy prosecuted, and the kidnapped man's wife, who wants every avenue of saving her husband explored.

A young man who claims to have helped a murdered young man change a flat tire is first the cops' primary suspect, then the prosecutors' chief witness.

Briscoe and Curtis investigate the death of a pretty young book editor who was reputedly having an affair with one of her authors, and find themselves focusing on the author's long time companion, who steadfastly denies there was anything wrong with their relationship.

The cops have a definite clue when a bloodstain that's not the same as the victim reveals that the killer was a blood relative, and the prosecutors stumble when their chief suspect claims their chief witness is her lawyer, and his knowledge of the crime represents privileged communications.

The cops uncover a man with a secret second life as they try to learn who opened fire on a group of people disembarking from a party cruise, but his guilt or innocence becomes almost a second thought as Schiff goes toe to toe with the governor and the States Attorney General over the decision to seek the death penalty.

The cops break the seemingly random murder of a pizza delivery guy with a little ""undercover"" work in the park, but McCoy and Ross face a harder battle to get a conviction when the two defendants resolutely point the finger at each other, and the one item identifying the actual killer is the recording of a confession-made to a priest.

Bloody sheets and an apparently stolen credit card lead Briscoe and Curtis to a pair of college age lovers who present McCoy and Ross with a united front of denial that one of them killed their newborn son and disposed of the body.

McCoy finds himself battling the Navy and the office of the Judge Advocate General as he tries to prosecute a female pilot accused of murdering her married lover after he tried to break off with her.

A discrepancy concerning the time of death of a drive-by shooting victim leads McCoy and Ross to initiate prosecutions against both the shooter and the doctor who harvested her organs as transplant donations.

After the cops trace an eagle tattoo on a man shot and killed while holding up an armored truck to a group of militia members, McCoy finds himself facing one of their number as the pro se counsel for his friends, arguing for the concept of "jury nullification", the right of a jury to protect a defendant from an unjust law by finding him not guilty despite the evidence.

It's old home week for Briscoe when an apparent murder of a teenage model in New York develops ties to Baltimore and Detectives Munch and Falsone pay a visit to the Big Apple to observe the case. Meanwhile, McCoy finds himself battling the attorney of the victim's parents for access to his clients and the Baltimore DA for jurisdiction.

This crossover continues on Homicide: Life on the Street S06E05 Baby, It's You (II).

The paternity of a black baby given up for adoption by a white mother might provide a clue to her murderer but it also unearths some long buried family secrets.

The murder of a bail bondsman looks fairly routine until the chance words of the chief suspect uncovers possible case-fixing between a shady lawyer and an unknown contact within the judicial system.

A message overheard on an answering machine leads Briscoe and Curtis to a confessed murderer and the home of wealthy Carl Anderton, whose stubborn non-cooperation with the district attorney threatens to create a serious miscarriage of justice.

The investigation into the death of a man who initially appears to be the victim of a mugging victim reveals him to be a Middle Eastern physician who performs genital mutilations on young girls.

After Briscoe and Curtis finally determine who was driving the car that killed three people, the legal prosecution stands in danger of becoming a kangaroo court when McCoy's feelings over Kincaid mesh with the political agenda of an ambitious judge anxious to make an example of the defendant.

The shooting of two people in a restaurant restroom takes some abrupt turns as they try to discover who exactly the intended victim was, and the prosecutors have to deal with a defendant claiming to have been in a dissociative state while committing the crime-- the same defense used years before by the defendant's father.

The street murder of a woman who worked with underprivileged kids takes a turn towards the bizarre when the detectives uncover she had a predilection for kinky sex, and that one of her current partners appears to be a serial killer, who offers an overexposure to television violence as his defense during his trial.

The cops, as they try to pin down the specifics of an assault on a man reluctant to talk about it, uncover the alleged rape of two women in custodial care. But as the prosecutors attempt to prepare their case, a reluctant witness changes their view of the cases.

Taking on an apparent mafia murder, Detectives Briscoe and Curtis are stymied by a dead witness and a seemingly incoherent mob boss.

The stabbing death of a psychologist draws Detectives Briscoe and Curtis into a heated divorce case and pits McCoy and Ross against a manipulative attorney.

The death of a college student leads to a case involving an HIV-positive male who's seeking to infect as many young women as possible. McCoy, testing right-to-privacy ethics, wants to charge him with murder.

When a woman is found unconscious at the bottom of her apartment stairs, Briscoe and Curtis must figure out what happened -- before it's too late. In order to make his case, McCoy pits the two detectives against each other in the courtroom.

A defendant refuses to allow his lawyer to raise the issue of insanity, this complicating matters for the brother who turned him in with hopes of securing medical treatment for him.

After a 12-year-old quadriplegic dies at home in his bed, paramedics claim that he was suffocated and the suspects include the boy's parents and sister.

Schiff's re-election may hinge on the stabbing death of a police officer; Briscoe's daughter is arrested for dealing drugs.

The case of a teacher's shooting uncovers a vendetta involving the rape of a mentally challenged coed by three students, whose attorney claims they weren't aware of her condition.

Tabloid journalism comes under scrutiny during the investigations into the deaths of a gossip columnist and a celebrity target he pursued.

During the search for a pedophile who raped a 10-year-old, a snitch offers Briscoe a chance to avenge his daughter's death. Meanwhile, Van Buren learns that her job is in jeopardy; McCoy is ordered to appear before a disciplinary committee because of his conduct in a DUI case; and the increasingly political Schiff worries that the rape case may adversely impact his reelection bid.

The investigation into a girl's death reveals secrets the adoptive family was desperately trying to hide.

Detectives discover a shocking twist involving unlikely suspects when they investigate the brutal beating of a black man dumped near the highway.

The investigation into how a teen got wounded leads to a case involving a young woman's murder and a drug operation.

After a child in a day-care center dies of a virus, Briscoe and Curtis try to find the source of the infection, leading to a case involving an extramarital affair, embezzlement and a drug manufacturer.

After the detectives find a murdered postman and a woman who was left for dead in her apartment, the investigation leads to a serial killer and a surprise.

The murder of an employee at a fertility clinic leads to a case involving a dead man's first and second wives.

The killing of a professional escort leads to a case involving the relationships between a young man and two older women.

The murder of a corrections officer leads detectives to a women's prison where a guard was linked to an inmate Carmichael put away on drug charges and a confrontation with defense attorney Danielle Melnick.

The double murder of a wealthy man and his daughter leads the detectives to the wife and stepmother of the deceased. However, Canada's objection to the death penalty hampers McCoy and Carmichael in seeking crucial evidence for obtaining a conviction.

Evidence points the detectives in the direction of a fascist youth gathering after the brutal beating and murder of a high school girl.

Briscoe and Curtis reopen a case that was closed in the '60s when a vehicle is dredged from the Hudson River containing the remains of a murdered man.

Briscoe and Curtis probe the murder of a popular Harlem community leader while McCoy and Carmichael struggle to prevent a chaotic situation.

Briscoe and Curtis race against time to find the killer of a parolee before two bounty hunters find the suspected murderer.

When Briscoe and Curtis discover that a high-level federal official found murdered was recently transferred from Baltimore, they re-team with Baltimore homicide detectives. The joint investigation reveals that the victim was involved in an affair with a high-level government official whose career will be destroyed if it becomes public. The independent counsel summons McCoy and Ed Danvers to Washington to demand McCoy reveal his source or be jailed for contempt.

This crossover continues on Homicide: Life on the Street S07E15 Sideshow (II).

After a teen is found dead in the emergency room, the investigation leads to a case involving a religious ritual and a defendant who claims that the action taken was dictated by a saint's voice.

Briscoe and Curtis investigate a possible homicide while probing the assault of a retired divorce attorney.

Briscoe and Curtis investigate the murder of a police officer who was shot while on an undercover stakeout.

The investigation into the shooting of a newspaper columnist leads to a murder case from two decades earlier and involves a suspect who at that time had been a juvenile.

After a philosophy professor is pushed in front of a subway and killed, the investigation leads to a suspect who, following a divorce, changed his identity and disappeared with his daughters.

The death of a corporate mogul caused by an overdose of a sexual performance-enhancing drug leads to a case with a witness that puts Curtis in a compromising position.

The murder of an audio installation salesman leads the detectives to a case with connections to the mafia.

A coed's killing leads to a case involving the deceased's relationship with a professor and two male students who vouch for each other's whereabouts on the night of the murder.

A shootout between a motorist and the police leads to the discovery of a gruesome Russian mob killing --- and a traumatized boy who was an eyewitness to the murder.

McCoy and Carmichael risk violating the civil liberties of witnesses when they are forced to jail them in order to safely continue their investigation.

"Fed" is the eleventh episode of the twentieth season of NBC's long-running legal drama Law & Order.