CSI: NY

When a lab tech is murdered in a case that has eerie similarities to a 1950's cold case, the CSIs get a glimpse into what goes on in the shadows of the lab.

When the CSIs investigate two seemingly unrelated deaths, their separate trails of evidence lead to a surprisingly connected conclusion.

The CSIs investigate when a role-playing game turns lethal, with one player falling victim to a bona fide killer and the other kidnapped and held for ransom.

A home invasion investigation becomes more complicated when the victim's family turns out to be less perfect than they originally seem.

A charred body turns into a hot mess for the CSIs when it appears a cage fighter has been murdered by his stalker.

When an important witness turns up dead, Jo is caught up in the dangerous investigation of the suspected rapist who was freed on her watch in D.C.

As the CSIs investigate the assassination of a judge, Jo comes face-to-face with a criminal from her past.

When news of a high school house party goes viral, resulting in overcrowding, a collapsed porch and a teenage girl's death, the CSIs must use social media to uncover the truth about how she died. Meanwhile, Jo's final case at the FBI returns to haunt her.

The CSIs investigate when a fraternity prank goes awry on Halloween and a pledge master is left for dead in an open grave.

The CSIs investigate when the recently paroled brother of a young basketball prodigy is implicated in a murder.

A night out for a friendly drink takes an unexpected turn when Danny and his rookie cops are caught up in a shooting.

When the body of a beautiful young woman is found in a stolen Ferrari, the investigation leads to a family of car thieves, but the CSIs must find the murderer before the rest of the family meets the same fate.

When an awkward teen is found dead, the team discovers that his efforts to win a sexy punk rock chick's heart may have gone a step too far.

On the 10th anniversary of 9/11, Mac and the team remember specific moments from that day that were indelibly burned in their mind.

Jo balances personal and professional challenges when her adopted daughter, Ellie, is the key witness in a murder investigation.

When a popular student and star pupil at Manhattan's most elite private school is murdered, the CSIs find themselves immersed in the highly competitive world of over-privileged youth.

When a conspiracy-obsessed woman is found dead, the CSIs investigate and discover that some of her theories may have had some truth to them.

When a serial rapist is found murdered, restrained in the same manner as his victims, the CSIs weigh a feeling of justice against their sense of duty to pursue the killer.

When the CSIs track down a suave and charming hitman, their investigation uncovers a conspiracy with far-reaching implications.

When a tractor-trailer carrying exclusive party guests mysteriously ends up at the bottom of the Hudson River, the CSIs must solve the mystery from the soggy remains.

When a Spanish club promoter is found dead, Mac must battle with the head of Barcelona's crime lab to solve the case.

When a man in full clown costume shoots a bakery owner, the CSIs investigate and discover a decision from Flack's past that may put him in jeopardy.

Mac and the team search for the killer of a department store manager who was found dead in a holiday display window.

When a woman's body washes up at the South Street Seaport, the CSIs unravel a dark secret from Deputy Chief Carver's past that threatens to shatter his stellar reputation and close-knit family.

As the CSIs investigate a case involving a woman who appears to have been scared to death in a supposedly haunted section of Central Park, Mac stumbles on another dead body buried nearby in the same part of the park.

Mac is on the hunt for a sniper who is using nitroglycerin in his bullets to explode on impact, and the prime suspect was once a missing boy from one of Mac's old cases.

When a badly decomposed body found is an abandoned car on a rooftop, Mac and his team must go up against a killer who is using the parents of his victims to manipulate crime scenes.

A jewel heist at the penthouse of one of New York's most powerful attorneys takes a bizarre turn and the case leads the CSIs to a seemingly unrelated man in the morgue.

When the leader of a powerful New York gang, El Puño, is found murdered, the CSIs must find the killer before a street war with a rival gang breaks out. Mac asks the co-founder of El Puño, Luther Devarro, a man he put behind bars years before, for help.

When a married couple is found beaten in their home, a mother identifies her son as the killer and the CSIs believe they have their suspect, but all is not what it seems when another witness comes forward.

When a young woman appears to be strangled while participating in a live online chat that Adam witnesses, the CSIs must determine if it was real or a hoax, and locate where the possible victim is.

The newest member of the CSI team, Jo Danville, a former FBI agent, is welcomed to her new job by stumbling upon the body of a young woman murdered somewhere in the building that houses the NYPD Crime Lab.

A death row inmate's final request brings Dr. Hawkes to a Pennsylvania prison and face-to-face with a tragic incident that he has kept secret for many years, just as a prison riot erupts and traps Hawkes inside.

When a woman linked to an unsolved murder case is found dead, the evidence and autopsy both suggest a suicide, but Stella is unconvinced and risks her life to pursue the case.

It's St. Patrick's day, and all of New York City is ablaze with a hundred shades of green -- except for an abandoned warehouse in Brooklyn, where two corpses have left a tiny part of the city drenched in red...

The team investigates the particularly gruesome outcome of a 21st birthday where the party plans became all but anything worth celebrating. With just a few and not easy answers as their only lead in the case, the CSis are challenged to stretch their abilities to the limit.

Two days before a Grand Prix Race, when a racing legend dies in a car explosion on the streets of Manhattan, the CSIs discover that car tampering is the cause; however, the investigation leads viewers through the professional racing community and beyond.

When a young woman's body is found in Central Park, drained of blood and missing part of her ear, the CSIs jumpstart an investigation that takes them into the dark and mysterious subculture of vampirism.

When a beautiful star quarterback of the Lingerie Football League is found murdered in the locker room hot tub with traces of lidocaine in her system, the CSIs are called in to find out who wanted her dead.

The investigation of a brutal stabbing takes a dangerous turn when it's discovered that evidence at the crime scene was planted, which pits the CSIs against a trusted colleague.

A reformed drug addict with everything to live for is found dead in an alley. The CSI's discover he was the victim of a premeditated plot.

A frantic 911 call sends the CSIs into a vacant penthouse; however, instead of finding the caller, they unearth a nearly 100-year-old corpse and find themselves navigating their way through a booby-trapped house.

In the culmination of a multi-episode mystery, Mac and his team uncover the dark lair of a murderous madman, the Compass Killer. But as they race to save his fourth victim, the sunrise presents one final surprise that no one ever expected.

The Compass Killer is back, and adds yet another to his circle of victims -- but this time the CSI squad knows his name; Flack's alcoholism threatens to derail his career...

The crossover starts on CSI: Miami S08E07 Bone Voyage (I). It continues on CSI: Crime Scene Investigation S10E07 The Lost Girls (III).

When a software company executive bleeds to death on a Manhattan street, the CSIs must delve into the wet and messy world of food "sploshing" parties - where groups of people experience food in an sensual way - to find his killer.

When an unidentified shooting victim turns out to be a rising star in the underground world of hip-hop dance battles, the CSIs turn their attention to a long list of rival dancers.

Incriminating DNA evidence contradicts the confession of a scorned woman claiming to have brutally murdered her cheating husband.

When two bodies are discovered at the North and South ends of the city, Mac and the team deftly begin to navigate the trail of evidence left behind by the killer.

The case of a cyber killer, who appears to be targeting medical healthcare workers, turns personal when the suspect invokes the name of Mac's father who had died nearly two decades earlier.

Danny and Mac have yet to get any leads on a cop killing when Danny gets an impromptu call from a young woman who claims she's got information about the case...

When a man falls 20 stories to his death, and his body goes missing after it hits the ground, with no body to process, the CSI's must treat this strange development as a missing persons case.

While investigating the shooting of a voice coach in an empty theater, Stella realizes that the crime scene is oddly familiar and staged.

When a Native American chief is shot on the subway, the CSIs struggle to translate which one of the several foreign suspects may have caused his death.

When the wife of a former medical examiner is found murdered, a white powder found at the scene provides the CSIs with a major lead in tracking the killer when it is discovered that the powder is heroin made from human bodies.

A lethal pipe-bomb blows a Manhattan townhouse and valuable evidence to pieces, forcing the CSIs to get creative in reconstructing the damaged clues that ultimately lead to the bomber.

When a buzzard flying over Manhattan drops a human eyeball from its claw, the race is on to find the body it belongs to before the avian saboteur flies away with the rest of the evidence.

When the Deputy Mayor's dead body falls from the ceiling, along with hundreds of balloons, at a charity fundraiser, Stella and her date find themselves in the middle of the crime scene and Mac goes head to head with Robert Dunbrook.

A Russian tourist is found stabbed to death and the CSIs come face to face with the frightening realities of human trafficking. Solving this case becomes personal when it directly affects a prominent member of the NYPD

The CSIs must piece together a human jigsaw puzzle when a beloved wrestling coach's severed body parts are found buried throughout the city. Meanwhile, Detective Flack is in the hot seat when a teenage suspect dies in his custody.

Young brides-to-be fight over a killer dress at the biggest wedding gown sale of the year and one of the shoppers winds up dead. The unusual clues of this case force Dr. Hawkes to confront a painful chapter from his past.

Mac runs into Ella McBride who could cost him time in figuring out if Isabelle Vaughn died by eating the miracle fruit. Stella gets in trouble with Mac while investigating another murder linked to the Greek diplomat that attacked her.

The team is forced to investigate two crimes at once when a mysterious energy field seems to be the cause of a billionaire's disappearance and the death of his limo driver.

A woman is found in the trunk of a crushed car at an auto wrecking yard, the autopsy reveals that she was pregnant, the team needs to find out who she is so they can find the baby.

In the one hundredth episode of CSI: NY Mac faces his most deadly foe yet. There is a serial killer loose in New York City killing people with the name Mac Taylor making Mac a target.

The team investigates the brutal murder of a house relocator who was found dead inside a Victorian house that he was about to move from Staten Island to The Upper East Side.

Three drug dealers set to stand trial are found dead in separate places. They were all trying to get rid of witnesses in their crime, but it looks like someone got them first.

The CSI team investigates the shooting death of an archaeologist whose secret life may have caught up to him.

The team investigates the puzzling death of a woman named Ann Steele. To solve the case, the team must look for a life size silicone doll. When the team runs into the factory that makes them, it prompts some amusement for some of the team. Meanwhile, Hawkes meets up with an old college friend who later asks him to compromise some evidence in the case.

When a supposed air marshal is murdered on a flight to the District of Columbia, Mac searches the plane for the killer and the murder weapon.

A series of deaths from radiation poisoning may be related to a deadly tome in the New York library.

Picking up where the season 4 finale left off. The team is investigating the death of a woman named Lauren Santana whom is linked to the bank robbery. She is a friend of Flack's sister Samantha. Also Mac has escaped the robber but the bodies are still piling up. So the team must quickly find the bank robber before he is able to get away.

The team must figure out how a young woman and a shark end up dead on the beach at the same time. This case gets even more interesting when a second body washes up on the beach. Quinn Shelby observes the team at work to determine if the lab should get their annual accreditation.

Stella's life is in danger after her apartment is on fire; she must try to save everyone in the building. The team also has a mystery to solve after finding a dead body in Stella's apartment building.

After the CSI's receive an anonymous tip they're led to an old warehouse hoping to catch one of New York's most-wanted criminals.

The team must figure out how a self-cleaning restroom leads to a drowning. The team also investigates the death of a man who was set on fire and flew into a fire truck.

In this episode Mac and his team must figure out how a woman's death and a judge's murder are connected. Danny has trouble dealing with Ruben Sandoval's death.

Mac and the team feel they're headed back to Kansas when they find the victim's body with red shoes on her feet crushed to death under an unusual object. The team learns about pop up parties after finding a body.

Danny is devastated when a young boy he knows is killed in the midst of a bodega robbery. Meanwhile, Lindsay, Stella and Flack investigate the death of a man killed by an exploding cigar that is connected to a joke shop proprietor and another tragedy that occurred years before.

While in Chicago Mac uncovers more clues about his stalker and reveals his troubled past. Meanwhile, in New York the rest of the team is in danger. The hunt is on to figure out the identity of the 333 stalker before time runs out.

What would otherwise be a happy wedding goes sour when the groom... turns up dead: inside a wedding present. After Stella finds bloody puzzle pieces inside a box on her car, Mac heads home to Chicago to solve what could be the murkiest mystery of his life.

New York City has everything: Times Square, billboards, parties, and a dead model in a giant martini glass. Now the team must find a party crasher who crashed one party too many.

The team has two cases tonight and two great tourist locations: Madison Square Park where a man is stabbed to death, and the Metropolitan Museum of Art, where a woman is shot dead on the steps. What is even more perplexing about these cases is that the team soon realizes that these two victims hold something criminal in common.

The CSI team goes to a haunted house to solve more than just the latest case. Before they can solve the crime Lindsay is told something will happen to her if she doesn't leave soon.

The latest murder case takes Detective Taylor to a whole new world and he must figure out why Cheryl Duncan looks so life-like. They also discover something shocking about the murderer while online.

Is it possible to solve a murder 24 hours before it happens? Mac wonders if the suspect traveled through time to know about the murder in advance.

After a series of heists in the city (one including Det. Chief Sinclair's house) one of the "super spies" involved is robbed of his life. The team works to solve the robberies and the murder, as both are obviously connected.

Sheldon Hawkes goes under water to gather clues but could be in danger when he can't come up for air. Mac learns of something else under water.

The team find themselves investigating something that isn't usually on the Statue of Liberty. Can a musician's life be saved before time runs out?

The team finds itself investigating the murders of three different people, only to discover that two of the murder victims are linked and may have been killed by the same person. One of these cases becomes personal for Mac.

At a French Revolution themed fundraiser at the UN, specifically at the French consulate, Mac, Stella and Hawkes find themselves hurdling diplomatic road blocks investigating two murders. Meanwhile, Danny and Lindsay reunite on a “blinged” out cockroach that lead to murder.

Illusionist Luke Blade may have to defend the art of magic after an illusion is thought to have killed two people. Back in Montana Lindsay will need to take herself back to the time when she was fourteen to help her remember the crime that killed four friends in order to help convict of the person that killed them.

Danny and Mac have to go to Noah’s Ark to find out if a broken promise leads to his murder. Stella and Sheldon investigate the death of a man dressed as a cigarette. Stella hopes to have her job after not telling Mac that she may be HIV right away.

Mac may have a difficult time solving the murder of a music mogul the sister cleverly uses a lie detector test to cover up the crime. Stella wonders if she has HIV due to an accident.

Reed Garret gives Mac some interesting information regarding the death of a college student. Also the rest of the team will need to be a step ahead of Ava Brandt to figure out why a security guard was murdered.

Can knowing a secret be a motive for murder? The CSI team must figure out if a change in gender is cause for the death of a showgirl. Also Lindsay goes back to Montana to try to put the person who committed the murder of four friends behind bars.

The team must find out if one team’s fun led to murder in the New York version of the Iditarod. Another case involves the death of a kidnapper in an empty apartment and where is the kidnap victim?

The CSI team has a problem after learning the family is deaf: now they have to find a new way to catch the killer. Meanwhile, more information is given on Lindsey's horrifying past and what led her to become a CSI.

After a bartender is murdered The CSI team must prove that Hawkes did not commit the murder. That only becomes more difficult when the team is pulled off the investigation.

The team is led to a crime scene in the middle of the city involving a parachute jumper whose parachute apparently failed. And one CSI is injured when a snake is found at a crime scene.

The next case takes us back to Dr. Sheldon Hawks' past and the reasons he chose to change jobs in the medical profession. The CSI team may find it extremely difficult to find out who committed the murder of the 19-year-old woman who recently started recovering from an accident.

The next case for the CSI’s gets even tougher when a paintball player turns out to be the prime suspect and later goes missing the team also has another problem the evidence that should point to the prime suspect points to someone else.

A young woman dies after she starts bleeding from the eyes, nose, and mouth while at a party aboard a subway train. Mac originally believes she is the victim of a biological attack. Later, it is revealed that Sheldon knew the victim. Across town, a wealthy playboy is found dead in an indoor lap pool in his penthouse suite. The investigation reveals that he was murdered and his last maid was fired two days earlier.

The CSIs are investigating the murder of a hotel concierge, but while doing this they hear gun shots fired across the street and find a woman clutching a gun over two dead bodies.

The CSI's handle to puzzling cases; Carensa is a young Suicide Girl who at 17, wanted a change of scenery and to become a Suicide girl, at 18 she gets her wish only to lose her life. Chopper, a rising street basketball star, a homeless man trying to change his life for the better is killed and leaves a painful trail of blood which leaves Mac to figure out where and how he died.

The body of a beheaded woman found in a fraternity house is a mystery to the CSIs. Now they must sort through twisted clues and crime scene after crime scene to find the killer that has them trapped in his own little game.

Danny and Lindsay examine the murder of an ice princess at a vodka release party while Mac, Stella, and Don examine the death of a runner at a Marathon in Central Park. Both crimes have interesting problems the teams must overcome to find out how they both happened.

Three women who are dressed as Holly Golightly rob a jewelry store and injure other shoppers in the process. The CSI’s must work through the confusing investigation to hunt them down. Meanwhile Mac has to identify a mummified body discovered in an apartment building that was being torn down.

The body of a man is discovered on the Brooklyn Bridge, and the only evidence is a huge marriage proposal in lights. The CSI team works through the investigation as they learn to deal with a new medical examiner.

Mac receives a phone call confessing to an old murder before the caller commits suicide. The call leads the team to a football stadium to uncover a body and they learn the suicide victim belongs to the Tanglewood gang. They also find a cigarette that puts Danny's job on the line after his DNA is found on it. Stella and Danny investigate the death of a businessman who used the services of an expensive call girl service.

A man dressed in a superhero costume is found dead in an alley, after saving a man being mugged. Mac, Stella, and Dr. Hawkes find his clothes in a nearby phone booth. Danny and Lindsay investigate the murder of an NFL first-round draft pick, known as "Superman."

The life of a transplant patient hangs in the balance as the team tries to find the hijacked plane carrying the liver.

A young boy witnesses the death of a museum curator but doesn't want to tell anyone about it. Danny investigates the death of an urban golfer found dead on a construction site.

After the body of a dead woman is found in a water tower the team suddenly realizes that the building may hold a bigger mystery than they expected.

Lindsay, Stella, and Mac are on the case of a dead ADA, who they discover, is involved in a "kill war" with water guns. Meanwhile, Danny and Hawkes investigate the murder of a young lady who had a penchant for suing restaurants and taking them for all they are worth.

Stella is invited to an art gallery where she sees several paintings done by an artist named James Golden. Stella thought she was going to Frankie's place and not to an art gallery. Outside the exhibit two people are kissing and one of them is shot in the back with an arrow.

Danny is on his way home after a long shift and finds Randy Williams subway surfing. Mac and Lindsay arrive on the scene and begin to wonder if Randy Williams died from riding on top of the subway. His death is even more suspicious after they examine the body more closely.

Mac, Danny, and Dr. Hawkes investigate the death of a runway model who collapsed during a fashion show. Meanwhile, Stella, Detective Flack, and Lindsay investigate a teriminally ill patient's confession to the murder of his doctor.

Danny and Stella find innovative ways to process a crime scene while Danny is trapped in a panic room with the victim, who was the only person with the security code. As a locksmith works to cut through the titanium doors, the CSIs rush to process the evidence before the victim decays further and Danny's oxygen runs out. Meanwhile, Mac, Dr. Hawkes and Lindsay investigate the murder of an exotic dancer found dead on a klieg light

Mac and Stella work on the case of a female roller derby player. Danny and Hawkes look into the murder of one of New York's upcoming crop of writers.

Mac, Danny and Lindsay investigate the death of owner of a doll hospital. Stella and Hawkes look into the death of a woman with terminal cancer.

Mac and Stella investigate a murder of a host of a high stakes poker game after a player was caught cheating and kicked out of the game. While Danny and Hawkes follow the clues that'll lead them to solve the death of a weather girl.

Horatio Caine follows Henry Darius to New York so that he can keep his promise to a young boy in Miami, but by the time he and Mac are able to locate Darius he has disappeared again, leaving behind six more bodies. The crossover starts on CSI: Miami S04E07 Felony Flight (I).

When a man is found murdered in an elevator, Mac, Flack, Danny and Lindsay investigate a world where very young girls enjoy sexual encounters with much older men. They're left trying to determine whether their best lead is a suspect, a witness ... or the intended victim. Stella and Hawkes investigate the death of a young man found in Central Park who died from an extreme allergic reaction and learn that he had been pretending to be someone that he wasn't.

Mac, Stella and Flack investigate the death of a young dancer who recently won the lottery, and it isn't long before they realise that her death is connected to Lindsay's investigation concerning the death of a tram driver. Danny and Hawkes look into the murder of a local fish merchant, and soon find their way to a jealous friend who was angry that their child didn't get into a prestigious school.

Three cases. A murder during the Feast of San Gennaro with ties to a financial services company. A body sitting upright on a Central Park bench. An apartment fire where a 10-year-old boy died of smoke inhalation.

Mac and Danny look into the mysterious death of a man torn apart by tigers at the Bronx Zoo, which leads them to both the dead man's meat packing plant as well as his mafia relatives. Hawkes and Stella are left with the case of a beautiful young debutante found dead on the carousel only hours before her coming out.

Stella and Danny are heading into the world of cuddle parties: non-sexual events were adults learn to touch and hug each other. Meanwhile, Mac, Hawkes, and Flack investigate the death of a hated plastic surgeon found covered with lye with thousands of eyewitnesses during rush hour at Grand Central Station. While Mac and Stella assist Aiden in a rape case, after she breaks an evidence seal, Mac must come to terms with Aiden's action and work up the nerve to fire her.

Stella and Danny investigate when a jewellery designer is found dead, wearing the eight million dollar bra he created, and investigate the model he had shot and her bodyguard. Aiden begins to take the rape case she has been working on a little too personally, and is determined to stop the man before he can rape again. Hawkes gets to go into the field for the first time as he assists Mac in investigating the death of a man who liked to climb skyscrapers.

When the body of a young woman is discovered at a laundry facility, the bed sheets she is wrapped in lead Mac and Stella back to an upscale New York hotel that houses diplomats from around the world when the United Nations is in special session. Meanwhile, Danny and Aiden investigate the death of a homeless man found dressed as a human statue. By all accounts, the prank is deemed a misdemeanor, but Danny decides to delve further and his refusal to stop the investigation puts him at odds with Mac.

When the chief investigator of a controversial report documenting corruption within the NYPD is gunned down the day before his findings are published, Mac and Stella must find the killer, launching a massive search that makes every officer listed in the report a suspect. Meanwhile, Danny and Aiden investigate the murder of a gypsy cab driver.

When young gang members murder the owner of an upscale Bronx wine store, the CSI’s must work to find evidence that ultimately ties someone to the crime. Tempers flare when the murder investigation reunites Detective Flack with his long-time mentor and friend Sergeant Gavin Moran, who was the first to arrive at the crime scene. Meanwhile, Danny and Aiden investigate the death of an influential movie producer found dead on the canopy of his Chelsea apartment building.

A woman's death leads our detectives to a school for sexual fetishes such as bondage and spanking.

The team's investigation into the death of Hannah Bloom, who died at her own wedding, is put on hold when her father refuses to allow them to perform an autopsy until after his daughter's body is blessed by a rabbi. Danny and Mac turn their attention to the woman who trained the doves who were supposed to be released, but cannot tie her directly to Bloom, who died from formaldehyde poisoning. Stella, Flack and Aiden investigate when a hand is found deep underground, and soon realise that the dead man, Rick Amadori, chewed off his own hand. It seems like a slam dunk when the son of a man Amadori killed three years earlier confesses to the crime, but things aren't as easy as they seem.

The body of a young contortionist is found folded into a box on Coney Island, leading Mac and Stella to the circus where they find themselves embroiled in a real-life Romeo and Juliet story between the dead contortionist, Lukas, and a trapeze artist, Anasuya. Danny and Flack find a woman's body in a laundry chute and learn that she was actually the former sorority sister of the woman who lived in that building, and turn their suspicion to the abusive husband the woman was hiding from.

The detectives investigate a murder at a grocery store that is also connected to the death of a young man with the tattoo "Tanglewood" on his back. A third case involves a woman who was killed in a hit-and-run auto accident.

Mac, Aiden and Flack investigate when Elaine Curtis is found dead at a dog competition, a knitting needle sticking out of her chest, and no shortage of suspects ranging from judges to trainers to contestants. Stella and Danny investigate the death of bicycle messenger Michael Starling, but the crime scene may have been anywhere along his route.

A young John Doe, nicknamed 'Slick', is found lying across the rails of an underground subway. At first, he appears to have died from third-rail electrocution, but an autopsy suggests that he may have met his end by other means of electrocution. Meanwhile, Leo Whitefield is found shot dead at close range in a gallery he owns, with no sign of break in or theft, and a construction worker turns up with a fatal injury to the head.

Mac and Stella investigate the murder of a woman who was stabbed in the heart with a wooden stake. The police arrest a woman who was kneeling over the body with blood on her, but Mac isn't convinced that she committed the crime.

After mounted officer Valasquez is shot down in the park, Mac goes looking for the bullet that killed the officer only to learn that it is lodged in the horse's spine and cannot be removed without being fatal to the horse. The investigation leads them to a local street vendor, but stalls when the D.A. asks Mac not to do anything to risk the horse until after the woman who donated it has a chance to say goodbye. Aiden investigates the body of a young man, Lenny Starks, who was found face-down, dead in the street. Aiden traces the young man to a local pizza parlor where she faces intimidation from the bookies who use it as a gambling front.

Danny and Mac investigate after a briefcase belonging to Luke Sutton is found left in the NYMEX with a bloody note inside. Their investigation into Sutton's activities lead them to Nick Lawson, whom Sutton had been investigating for illegal trades, but who swears he had nothing to do with his disappearance. Stella and Flack investigate the death of Trina Rolston, a young pregnant women who fell to her death from the roof of a church. With Hawkes help, Stella realises that the body was thrown off the roof to mask the true cause of death. The detectives soon realise that their two cases are connected.

When the charred bodies of two men who had been robbing a Chinatown bank are found, the entire team investigates the crime, which leads them to Doris, the missing infant of the bank's manager. The team realises that Joanna Cho assisted with the robbery out of fear for her daughter's life. Mac and Stella finally manage to track down the third robber, only to find him lying in a pool of blood, with a trail of bloody baby handprints leading away from the body.

Two cases. One involves multiple homicides at a restaurant and the other starts with an amputated leg found in a dumpster.

Stella and Aiden investigate after finding the body of a teenage girl in a creek. They soon realize that she was a middle-class girl attending a fancy school who was trying to make it seem like her family had more money than they did, and trace her movements to a nightclub. Mac and Danny investigate when a body is found in the tunnels without any protective gear on, and end up running into a brick wall when the Sandhogs union blocks many of their attempts to get information about the victim.

On the very night that he wins a D.J. competition, DJ Banner is found dead in an alleyway outside the club where the contest is being run, prompting Mac and Flack to investigate not only the club but also Banner's primary competition, who was jealous that his girlfriend's voice was part of Banner's act. Stella and Danny investigate the death of fashion designer Deborah Gayle, found face-down in the pool at her apartment by her assistant, who isn't concerned by her boss's demise. An autopsy reveals that the cause of death was poisoning by tetrodotoxin, a poison found in blowfish, which leads Stella and Danny to Fuqua Sushi.

After a skeleton is found on a tour bus and turns out to be over a decade old, Mac and the team use the backpack they have found to track the belongings to a young man named Aaron Moreland, only to learn that the body they have cannot possibly belong to him. By tracing the victim's shirt, detectives are led to a youth center worker who claims not to remember the boy, but is hiding an old secret of his own.

Junkie Jordy Thompkins was shot dead in an alleyway, but the bullet that killed him is missing. Taylor and Hawkes soon realise that a rat may have eaten the bullet, and finding the rat leads them to a robbery that occurred earlier that day. After Robin Prescott is found raped and beaten in Central Park with only a peony leaf on her clothing, Stella and Flack have the daunting task of trying to find the man who raped her, but Prescott has no memory of the crime.

The team finds three young women, all of whom appear to have been brutalized in the same way. The only witness they have is the surviving young woman, who can communicate only through blinking. Photographs found at one of the crime scenes lead the team to a couple that had sponsored one of the victims, and the boyfriend who claims he hasn't spoken to her in weeks.