Watch CSI: NY Online Free - Full Episodes

Danny is back in the field with Flack for the first time after the shooting and a store owner's life is in the balance. Mac finds a key piece of evidence that will put him in the path of serial killer.

The team has to track down a serial against the clock while frantically looking for Flack, who has gone missing. Mac stands up for him arguing he reported the need tend to a family problem, deliberately misleading Flack's commanding officer who suspects the real reason behind his strange behaviour.

Which presumably seemed to be a traffic accident, turns out leading to homicide and illegal organ harvesting. The chase of those involved in the slaughter chain makes all three NY, Vegas and Miami CSI teams put their efforts together to put an end to the crimes. Hawkes, in particular, is very upset about the case.

Hawkes may find himself in trouble after a man dies. The team finally finds out why Hawkes kept asking for overtime.

Mac and his team have to help a dancer remember the events that lead to the death of her boyfriend in their hotel room after winning a large sum in a street dance battle. They also have to find answers to why the hotel manager didn't bother to assist the woman when she rang the bell and why the money was left untouched.

A woman confesses to murdering her husband but when the evidence is tested to see if she is telling the truth, it clears her of any wrong doing taking the case in a completely different direction and leading to several potential suspects, a serial killer striking in the city among them. Mac sets his mind out to find who the woman is protecting.

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.

Mac has to figure out why a mysterious caller keeps asking questions about his father and how he knows everyone's name.

The sixth season begins with Mac's team recovering from a hail of machine-gun fire aimed at them while they were at a local bar remembering one of their fallen members. One person's life is significantly changed by the event, and the CSIs become determined to find the shooter.

As the 5th season comes to an ending, a publishing mogul's son is kidnapped while he is escorted from a prison to a court. During the ambush, one of the CSI's is killed and another one is badly injured.

While investigating murders that are linked to ancient Greek artifacts, Stella turns in her badge and follows the clues to Greece, where she uncovers a mystery involving historical proportions.

When an innocent man is released from prison, a grieving mother seeks revenge at him for something she thinks he has done. Meanwhile, Lindsay gives birth to a baby girl.

An investigation takes place when a jewelry appraiser is murdered at an auction, and the appraiser may have been linked to neo-Nazis and that a prisoner of Auschwitz originally owned the exclusive brooch.

a man falls 52 stories to his death. The problem here is that his body goes missing after the fall. This will be a missing person case.

The CSIs investigate a man shot in an empty theater. However, Stella finds out that the crime scene is staged.

A Native American chief is shot and killed on a subway, the CSI's investigate his death which seems to go smoothly until they run into a major problem, all of their suspects are foreign and do not speak English.

After a former medical examiner is found dead, a powder recovered at the scene leads the CSIs to believe the killer is making heroin out of human bodies.

A Manhattan town house gets blown up by a pipe bomb. However, the explosion took much of the evidence with it, so the only chance the CSIs have is to reconstruct all the damages in order to track down the person behind the pipe bomb explosion.

When a buzzard flying over the city drops a human eyeball, the CSI team needs to uncover who's the "owner" of it.

Stella attends a fund raising event and a crime scene at the same time. Mac meets a new foe

The CSIs investigate the death of a Russian tourist and the case makes them dive into the world of human trafficking. The case gets more complicated when they find a link to a member of the NYPD.

Mac and his team investigate when a tough but successful wrestling coach's body is found in pieces all over New York. To make matters worse during Flack's interrogation of one of the wrestlers that wrestler ends up dead.

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.

In what seems to be an open and shut case, the CSIs search for a killer after a murder suspect is impaled during a police pursuit.

Two mysterious deaths; a billionaire and limo driver and both crimes occured near the Empire State Building and the team is forced to investigate both and why, at the same time.

When a body is found inside of a crushed car, the CSIs must remove what is left of the body in order to identify the victim and the cause of death.

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 finds more than just a house floating up the river; they also find a group telling secrets that could be deadly.

Mac must figure out what secrets the three defendants were hiding just before their trial.

Summary is not available.

The team investigates the puzzling death of a woman named Elaine 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.

On Mac's flight to D.C., an air marshal is found murdered shortly after take off. Mac is certain the killer is on board and searches for the murder weapon.

The CSIs are in a race against time to find the source of a series of deaths caused by radiation poisoning. The search leads the CSIs to a deadly volume in the New York City Library.

In the wake of the bank heist gone wrong, Mac finds himself in a submerged car with no memory of how he got there.

When a bank heist goes wrong and the bank's manager winds up dead, the gunman takes the entire bank hostage. His only demand is that the CSI team prove he didn't kill the bank manager.

When the man thought to the be "Cabbie Killer" is found dead himself, Mac and the CSIs must determine whether or not the man is really the serial killer and whether or not the city of New York can rest easy.

The hunt for the "Taxi Cab Killer" continues as the CSIs race against the clock follow a new trail of evidence before the now notorious killer takes another life.

The CSIs are called when a guidance counselor is killed under mysterious circumastances. Meanwhile, the serial killer dubbed the "Taxi Cab Killer" continues to make his mark on the city.

The team is sent to investigate when a salesman is found dead next to several dead sharks on Rockaway Beach, which leads them down a twisted trail of evidence as they search for the killer.

After a fire breaks out in Stella's apartment, the CSIs must determine if it was arson.

An anonymous tip has the CSIs searching an emptied warehouse in a hunt for one of the cities most wanted criminals.

What seems to be like a freak accident involving a drowning victim in a self-cleaning restroom turns into foul play.

Two separate murders occur in the same area, leading the CSIs to investigate whether or not the deaths are connected.

The CSIs are called when a woman is crushed under an ice castle sculpture with her red glittery shoes sticking out from underneath the ice. The victim, known as "Wicked Witch of the Upper East Side", had several enemies, all of which the CSIs must investigate in order to find the killer. Meanwhile, a teenager's body is discovered, leading the CSIs into the world of New York City's prep school parties.

The CSIs' investigation of a murder leads them to "laughing Larry", an infamous seller or killer pranks. And Danny works on a case involving a boy from his neighbourhood.

Mac believes he is closer to finding his "333" stalker and learns the meaning of the numbers. Meanwhile, a CSI team member is held as a hostage.

Mac is called in when a man is killed on the day of his wedding. He is found stuffed in a box and wrapped like a wedding present, and Stella finds a box of bloody-covered puzzle pieces in her car, which leads Mac to Chicago in order to solve the biggest mystery of his career.

A supermodel is found dead on top of a Times Square billboard, crammed into a giant martini glass.

Mac and the CSIs investigate the murder of a man who was found in Madison Square Park as well as a woman who was shot at the Metropolitan Museum of Art. While looking into the deaths, they find that the man and the woman share a similar criminal past.

The CSIs look in to a mass murder at the Amityville Horror house and come across several eerie events along the way.

A woman is killed and Mac must delve into "Second Life," an Internet virtual reality world to find the killer.

A man on his death bed confesses to a murder 24 hours before the murder occurs, which leads Mac to look into the possiblity of time travel.

When some of Manhattan's richest residents are robbed, the clues that the CSIs come across all point to a fancy vehicle, which puzzles both Mac and Stella.

When a body is uncovered in the New York harbor, Mac and the CSIs uncover an assassination plot planned for a U.N. convoy.

The CSIs find a trace of blood on the crown of the Statue of Liberty, leading them on a chase to find a vigilante before he kills a well-known musician.

Following the biggest drug seizure in New York history, Mac, Stella and Hawkes have to save their lab when the drug lord and his crew arrive to reclaim their drugs. In the action, two CSIs are taken hostage.

The CSIs are puzzled when both evidence and witnesses name John McEnroe as a murder suspect, but he has an air-tight alibi.

Stella must cope with painful memories when Det. Valens informs her that her DNA has been linked to a Philadelpia cold case.

When Mac arrests a police office, an alleged serial killer is set free, forcing Mac to take the issue into his own hands.

The CSIs investigate three separate but equally bizarre cases -- a man is found in medieval armor impaled by a lance; another is found stabbed with an ice pick; and a body is stolen from the coroner's van.

Mac and Stella run into a diplomatic dead end while investigating the murder of a girl's professional handler during a fundraiser at the U.N.

Stella and Mac investigate a magician's trick that leaves a woman sawed in half. The only clue is a fingerprint on the trunk the victim was killed in and the print belonging to her stalker. But the suspect has an airtight alibi since he was at a court ordered, anger management class at the time of the murder. Lindsey is in Montana for the court case of her best friend's murderer.

Mac, Danny and Flack are puzzled by their latest crime scene, which includes an ark in the victim's back yard full of people, food and animals. Interrogations reveal that the people believed the apocalypse was near and the victim promised salvation.

While looking into the murder of a music executive, Mac is thrown off by the victim's sister who passes a lie detector test and swears that both she and the victim were attacked by a woman, despite the fact that the victim's sister would have been given his lucrative life insurance policy. Meanwhile, Danny and Detective Angell investigate the death of a woman in a bathtub.

While investigating the death of a college student found dead in a Queens park, Mac, Sheldon and Det. Flack discover a secret college society that may have been behind the victim's murder.

A celebrity impersonator, who performed at a party in a ritzy hotel, is found dead in a men's room stall. She was drowned in the toilet. The investigation reveals the victim confronted a congressman, at another hotel event, shortly before being murdered. Across town, a man's body is found inside of a city salt truck. Also, Lindsay is asked to testify in a multiple-homicide trial in Montana. She was the only witness to the murders of four of her friends.

The rules of the Idiotarod race encourage teams to sabotage their enemies' carts, so once the cause of death of their victim is proven to be multiple blows to the head, Danny, Sheldon and Det. Angell work to determine if this fun annual challenge became too competitive for one team. Meanwhile, when a successful real estate agent is found dead inside a Manhattan brownstone by some young kids, Mac, Det. Flack, Lindsay and Stella investigate what appears to be a possible kidnapping turned deadly.

When an intruder breaks into the home of a deaf family and fatally shoots their teenage daughter, Mac works with the grieving mother who relies on her other senses to provide clues that will help catch her daughter's killer. Along the way she also provides assistance to Mac as he struggles in his relationship with Peyton. Meanwhile, Stella and Danny investigate when a professional ice skater is killed prior to competing in the U.S. ice skating regionals and whose body was found by her best friend, an Olympic skater who thinks she might be to blame for her death. Also, when Lindsay abruptly walks away from a crime scene and loses control of her emotions, the team questions her past.

The CSIs are floored when Sheldon Hawkes is apprehended during an early morning run as the primary suspect in a bartender's murder. While he maintains his innocence, Mac and the team grow increasingly frustrated when they are removed from the investigation for fear they'll contaminate the evidence. With a mountain of evidence stacked against him, the team works tirelessly on their own to piece together the clues that will hopefully prove Hawkes' innocence. Meanwhile, Danny and Stella investigate what seems to be an overdose, but they realize their routine case may be connected to escaped serial killer Shane Casey.

While filming a promotional spot, a base jumper plummets to his death after his parachute is punctured by pigeons, leading the CSIs to the competitive world of pigeon racing and to a second victim, a prominent trainer who was also murdered.

Five days after surviving a horrific car accident, the woman who lost control of her car while driving home drunk is murdered in her hospital room shortly after coming out of a coma. Despite being paralyzed from the waist down, the doctors gave the victim a good chance for recovery, so the team must determine who wanted her dead in spite of her prognosis. Meanwhile, Sheldon returns to the hospital where he once worked as a promising surgeon and his investigation opens old wounds that led to his departure and caused him to become a medical examiner.

When a professional paintball player is shot in a warehouse, the team assumes the murder was committed by an opposing player who took the game too far. But their investigation becomes more complicated when his opponent goes missing. The evidence at the scene proves to be "black cocaine" originally confiscated in a raid by the police department months before, and Mac's suspicions of an internal leak causes friction within the department. Meanwhile, Stella grows increasingly paranoid when she suspects that she's being followed.

Mac, Sheldon, Jennifer, Peyton and Lindsay investigate the mysterious death of a party-goer found in a subway car where the victim initially appears to have bled out, but the cause of death is determined to be multiple organ failure. The team must track the promoters of the subway raves to find what killed the young woman before another victim is found dead at one of their secret gatherings. Meanwhile, when one of New York's most eligible bachelors is found dead in the swim gym of his penthouse apartment, Stella, Det. Flack and Danny question his "room maids," beautiful women hired to clean the homes of the wealthy in exchange for room and board.

A young hotel concierge falls to her death from a balcony and is impaled on a statue shortly after an ugly incident with a popular model participating in a rooftop photo shoot. While Mac and Stella investigate the case, they hear gunshots coming from a nearby building and discover the shots came from a penthouse loft. When they enter, they find a woman standing over two dead bodies, one of them her husband. The woman claims the other victim was beating her husband, so she shot the man.

Danny and Lindsay work to find who bludgeoned a young woman to death after her performance with SuicideGirls and their suspect list grows smaller when the murder weapon proves to be a stiletto worn by one of the women. Meanwhile, Mac, Stella and Flack investigate the death of a homeless man turned streetballer who was killed after winning an intense one-on-one game in Rucker Park against one of professional basketball's best.

When a college girl is found beheaded at a sorority party, the entire team focuses on their toughest case yet. The victims wear t-shirts emblazoned with a logo inspired by Greek mythology that offers clues and hidden messages. By tracking the codes on the web, the team discovers that a serial killer is replicating the fate of mythological creatures by killing people in the same manner, and the only way to stop him is to unravel the hidden codes before he strikes again.

With thousands of suspects and no witnesses, the CSIs fight to collect evidence while spectators and marathon runners contaminate their crime scene. Meanwhile, a high-end vodka's ice-themed promotional launch party turns deadly when a model is stabbed, leaving Danny and Lindsay racing to collect vital evidence before it melts.

Stella, Flack, Lindsay and Danny can't resolve how, despite the police being tipped off by the store's personnel, the women were able to escape the jewelry store so quickly. Also, Lindsay proves her strength when she puts herself in harm's way to solve the case. Meanwhile, when the mummified body of a city councilman's missing wife is found during a building's demolition, Mac and Peyton have their first professional argument when Mac isn't satisfied with her findings from the autopsy.

When a man is found dead on the Brooklyn Bridge and the only evidence is his marriage proposal displayed in lights on a Manhattan high-rise and a souvenir key chain as a murder weapon buried in his chest, the team comes together to find the person who may have brutally rejected his offer.

The CSIs face their toughest challenge yet when a bomber uses random cell phone pages to detonate C-4 bombs across the city, and a member of the team fights for life when seriously injured during one of the explosions.

In a race against the clock, the team works with local agencies and government authorities to locate the bomber and narrow down the next trigger among the city's six million cell phones before he strikes again. Meanwhile, as Mac investigates a routine crime scene, he stumbles upon a bag containing C-4 explosives and is unable to evacuate the building quickly enough to get his team out of harms' way. While a CSI is rushed to surgery, Mac struggles with the memories of the last person he was unable to save, a fellow Marine killed during the 1983 Beirut barracks bombing.

During Fleet Week, an annual New York tradition showcasing military pride and achievement, the city is awash with servicemen taking a break from their duties. The discovery of a dead Marine in what is traditionally a week of celebration hits particularly close to home for Mac, a former Marine, as he sees a young version of himself in the victim. Meanwhile, the team unites on one case when the victim of a car fire is someone they all knew.

Mac and Stella are shocked when, while at a crime scene, two grief-stricken women approach them claiming to be married to the victim. The women explain they were both knowingly in a committed threesome relationship with the deceased. Meanwhile, when a young woman dressed as a mermaid is found tangled in the kelp off a ferry dock, Danny and Lindsay investigate her murder and discover that her last known whereabouts were at a child's birthday party. The case affects Lindsay the most when she realizes the victim is from her home state.

A concert goer attempting to sneak in to a Kid Rock show gets the shock of her life when she discovers a dead man in a limo outside of the concert hall. Mac and Lindsay are forced to question concert goers, groupies and uncooperative handlers when the star becomes their prime suspect. Meanwhile, a routine call heard over the police scanners floors the team when they realize the emergency may affect one of their own team members.

An anonymous caller reveals to Mac that a young man is buried at a football stadium and, after uncovering the body, the evidence leads the CSIs once again to the Tanglewood gang.

After being unable to jail the leader of the Tanglewood Boys a year before, Mac makes it his mission to succeed this time, but he's shocked when the evidence puts Danny at the crime scene instead. Meanwhile, when a banker is found dead in a hotel room, the team questions the man who runs a high-priced escort service claiming to offer their clientele the ultimate date experience at a very steep cost. Also, as Stella and Frankie's relationship progresses, she is surprised to receive a special sculpture from him.

The murder of a would-be super hero leads the team to uncover the illegal sale of prescription drugs to junkies and they suspect the victim's killer is behind it all. Meanwhile, when a college football superstar is killed in his hotel room shortly after being chosen as a first draft pick for the league, Danny and Lindsay question a long list of suspects who came into contact with him after his sudden fame.

When a helicopter containing a liver from an organ donor is hijacked from the roof of a Manhattan hospital, and a medical intern is killed in the process, the CSIs must find the perpetrators and the liver before the transplant patient dies.

Mac, Sheldon, Danny and Det. Flack's only witness is an unconscious helicopter pilot, but their initial clues lead the CSIs to suspect that the helicopter hijacking may have been an inside job. Meanwhile, the rape and murder of a restaurant hostess found in an alley shocks Stella and Lindsay when they discover that she anonymously engaged in phone sex with her patrons, leaving a suspect list a mile long.

Mac, Stella, Sheldon and Lindsay investigate the death of a museum curator murdered in the wing her wealthy family donated and the crime's only witness refuses to talk.

Mac becomes particularly protective of the only witness in his murder investigation, a young boy found in shock at the exhibit, who after seeing the grizzly crime, confuses the events at the museum with a comic book he was reading at the time. The team works to discover if the motive was money, given the curator's wealth, or if the witness has something to do with it when the CSIs find he has ties to the victim.

Meanwhile, Danny and Det. Flack are called to a construction site where a man is found dead with a mouth full of foam sealant, which leads them to an extreme golf association with members who play in the streets of the city's five boroughs.

When blood begins pouring from the faucets of a building, Mac, Det. Flack and Lindsay investigate and find a female doorman dead in the building's water tank.

After learning that the building in which their victim was found had six suspicious deaths over a 10 year period, Lindsay begins to question the science and wonders if the building is cursed. Mounting evidence seems to point to only one suspect, a doctor who swears he had no interaction with the victim, even though their lives seem intertwined.

Meanwhile, when a trend spotter is killed in Washington Heights after photographing a stylish teen, Stella, Sheldon and Danny question the marketing executive whose business was affected most by the victim's foray into the neighborhood.

Mac, Stella and Det. Flack uncover the latest fantasy game sweeping New Yorkers of every class and status -- an assassination game called "water gun wars," where each player receives a pack of photos from an unknown source, and then must track and shoot their targets with a water gun or balloon before another player kills them first.

Meanwhile, when a woman is found dead in her Manhattan apartment, Danny, Sheldon and Det. Maka trace her steps to an exotic cuisine event where the main course includes live centipedes, Brazilian cockroaches, live octopus and fried tarantulas, among other delicacies.

Mac, Det. Flack and Dr. Hawkes investigate the death of a model and an injured 20-something billionaire who were both speared by an arrow while hooking up at his party. Stella, who was attending the event as a guest, joins the investigation as the team works to discover who was the intended target--the playboy who is notorious for his conquests, or the model he had just met.

Meanwhile, Danny and Lindsay question a multitude of suspects when a music promoter is found dead, coated with glue and covered in the billboard posters of the band he was trying to break out.

A 19-year-old college student is found dead on the tracks of the subway after apparently riding on top on the train. A shark's tooth is found embedded into his hand and four tropical fish are discovered in his stomach. The evidence points to murder, not an accident.

Meanwhile, Stella probes the murder of a commodities trader found dangling by a cord out of his office's 40th-floor window. The investigation reveals that the man was killed before he was tossed outside.

Mac, Danny and Dr. Hawkes are puzzled by the death of a runway model and their case becomes even more complex when a second model is found dead in a cargo area staged outside of the fashion show.

Meanwhile, a terminally ill patient walks into the precinct and confesses to the murder of his doctor. Stella, Det. Flack and Lindsay question the suspect's confession when they realize the doctor was moonlighting as an alternative healer.

A stripper is found dead in an alley on a klieg light that projects her silhouette onto the Chrysler Building. The investigation reveals that earlier the victim was lube wrestling with an overly aggressive customer who was thrown out of the club where she worked. Across town, a reclusive billionaire is discovered murdered in his bedroom with his throat slit. Danny then becomes trapped in a panic room inside the victim's mansion.

After a pile-up during a heated match between two of New York's all-female roller derby teams turns deadly, Mac, Stella and Lindsay investigate the skater's death, whose beauty and multiple endorsements may have caused her murder.

When a game between rival teams, the Manhattan Minx and Brooklyn Clobbers, ends in the murder of the premier skater in the league, the CSIs must discover if her murder was an act of jealousy from one of her teammates or if she was killed by an opposing skater because of her competitive edge. Meanwhile, Danny and Sheldon investigate the death of a gifted writer who is found with the final chapter of his latest novel written on his entire body, leading them to believe that their suspect likely suffers from hypergraphia.

Mia Sara ("Ferris Bueller's Day Off") guest stars as Cala Winger, victim Griffin Holden's book editor, who reports him missing and seems more concerned with the missing chapter from his manuscript than with his death.

Then the owner of a doll hospital is found murdered and a doll's arm proves to be the murder weapon, the CSIs struggle to find clues in their creepiest crime scene yet.

When the body of a man is discovered buried among a pile of detached doll parts, Mac, Lindsay, Det. Maka (Hu) and Danny are called to one of their most bizarre crime scenes yet. The team must piece together the clues and doll parts to discover who murdered the store's owner. Meanwhile, a beautiful waitress is found dead in a studio apartment recently bestowed to her by one of her patrons.

After a player is caught cheating and is kicked out of a high stakes poker game, the results are deadly when the host is murdered with a shotgun.

A friendly poker game turns deadly when the players realize one of their own is cheating, beat him mercilessly and kick him out of their apartment. When a knock on the door is followed by a shotgun blast that kills the host, Mac and Stella follow their only lead, the ejected player. Meanwhile, Danny and Dr. Hawkes investigate the murder of a local news station's weather girl and their search uncovers a tape she was desperately trying to hide.

A crossover episode that began on "CSI Miami" concludes with escaped serial killer Henry Darius murdering a group of teens in a luxury apartment where he tries to steal millions of dollars from a high-tech security vault. While working the case in Manhattan, Horatio is served with a subpoena that names him as a suspect in an unsolved murder more than 20 years ago in Queens.

After a wealthy middle-aged man is murdered in the elevator of his Park Avenue apartment building, the team must track the only witness to the crime who fled the scene.

After a wealthy man is shot at close range in an elevator just outside of his penthouse apartment, Mac and Det. Flack realize that a companion may have witnessed the murder. Their investigation leads Danny and Lindsay into the world of underage high school girls who disguise their age and revel in the Manhattan social scene in order to meet wealthy men. Meanwhile, Stella and Dr. Hawkes investigate the death of a seemingly well-off young man found in a Central Park lake who seems to have two identities.

Mac, Stella and Det. Flack investigate the death of a young dancer who seems to fall from the sky and crashes into a car near the Queensboro Bridge.

The team learns that the young dancer was enrolled in a famous dance school and her fellow competitors seem the most likely suspects. Meanwhile, when a local fish merchant's body is found, Danny and Dr. Hawkes trace him back to the recently relocated Fulton Fish Market where they discover that he was impaled by a swordfish. Their investigation leads them to a high-priced Manhattan private school where parents will pay any price to get their children enrolled. Also, Lindsay examines the death of a Roosevelt Island Tram driver found dead on board by early morning commuters. Scenes from this episode with series stars Gary Sinise, Melina Kanakaredes and Eddie Cahill were filmed on location in New York City's Herald Square.

When a man collapses and dies in the middle of the annual San Gennaro festival in Little Italy, the team must investigate how the victim ended up with a wood sliver in his heart.

The San Gennaro festival draws over one million revelers annually, making the site a tough crime scene to process. When Stella and Danny are called to investigate a murder at this site, the clues lead them to a pool hall destroyed in a brawl. Meanwhile, Mac and Lindsay investigate the murder of a CFO found decapitated on a bench in Central Park. The investigation leads them to a financial office where the executives practice martial arts competitively. Also, Dr. Hawkes and Det. Flack investigate a suspicious apartment fire that kills a 10-year-old chess champion.

When a man is torn to pieces by a tiger at the New York animal conservatory, Mac, Lindsay and Danny must discover who was responsible for getting him there. Norberto Barba directed the episode written by Co-Executive Producer Peter M. Lenkov and Supervising Producer Timothy J. Lea.

While investigating a vicious tiger mauling at a New York zoo, the CSIs question the workers at the meatpacking plant the victim owned. Meanwhile, Stella and Dr. Hawkes must solve the murder of a debutante found dead on a Central Park carousel. Also, a new CSI (Anna Belknap) joins the team.

While investigating the murder of a plastic surgeon, Mac and Hawkes discover that suspects abound since the doctor had pending lawsuits with patients who sued him for millions. Meanwhile, Stella and Danny delve into the world of cuddle parties while tracking the killer of a blind woman found on a Manhattan rooftop. Stella enlists the help of a sculptor to aid her with a facial reconstruction project that will help nab the suspect. Also, Aiden grows frustrated when she's unable to find evidence to finally send a repeat rapist to jail. And, the CSIs lose a member of the team.

The CSI's offices have relocated to a Manhattan high rise which includes new labs, a staff break room and new office equipment with state-of-the-art technology. Also, after expressing his interest in moving out of the coroner's office, Dr. Hawkes joins the team in the field and his first case has him working with Mac on the death of a skyscraper climber. Although hundreds of witnesses were on hand to see the climber fall, the team suspects foul play and believes someone may have caused his death. Meanwhile, Stella and Danny investigate the murder of a New York fashion designer killed while wearing an eight million dollar diamond bra from his own collection.

Mac gets caught in the middle of a shooting at a cafe while having breakfast, and finds himself torn over whether to pursue the gunman or help a waitress injured in the attack - but as the team give chase, the detective has more private decisions to make.

Danny puts his baseball skills to the test as he pieces together the evidence in the case of an avid Boston Red Sox fan found dead after his team lose to New York.

A routine investigation at a crime scene turns sour when Danny is attacked by a criminal hiding in the victim's house. He gives chase to the subway, where shots are fired - during which the offender vanishes and a police officer is killed, leaving Danny as prime suspect. Stella investigates the body of a nanny found in a Central Park public lavatory.

When a college student is beaten, shot to death and his apartment ransacked in what appears to be a drug-related hit, the team must track down his killers. After examining the evidence in the murdered student's apartment, the team finds traces of pure, unprocessed heroin and discovers that the victim had a female roommate who is now missing. Meanwhile, Stella's aggressive interrogation tactics with a witness threaten her police badge.

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. Before dying, the storeowner makes a statement to police identifying his attackers as young gang members. 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.

Mac and Stella investigate when they find the body of Paddy Dolan, a longshoreman. Part of the body is found on a transport truck and another part back at the warehouses, but Mac encounters difficulty with the investigation when the workers put up a wall of silence against them. Aidan and Danny investigate the death of Debbie Bogda, who was found naked on the expressway, and their investigation leads them into a world of sexual games and bondage once they realise she was actually harnessed to the front of a truck.

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 trapeze artist 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.

Mac and Stella investigate the death of Paul Montenassi, a young man left to bleed to death in the snow. The investigation leads them to another victim, Mihok Lev, who had been killed by Montenassi in a robbery earlier that evening. When Hawkes concludes his autopsy on Montenassi, he is able to reveal a sanded-off tattoo that leads the detectives to the Tanglewood Boys. Danny and Aiden investigate the hit-and-run that caused the death of Marta Santo. After discovering sperm on the woman's clothing, Danny and Aiden learn that Santo liked things rough, and their investigation leads them to an erotic massage parlor.

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.

Mac and Stella investigate the electrocution death of a man found in a subway tunnel. Danny investigates the murder of a gallery owner whose death is connected to the mob. Aiden and Flack investigate the death of a construction worker.

A game of one-on-one is interrupted by the discovery of a woman covered in blood leaning over the body of another woman who has had a stake driven through her heart. Mac soon realises the woman was sleepwalking and tried to save the victim's life, but the case stalls because she is the closest thing they have to a witness, and she has no memory of the event. Danny and Aiden investigate the brutal murder of a pickpocket whose identity they track down using information on an experimental medical trial. Money found in the victim's underwear leads the two to another pickpocket, but there is no obvious motive for Lenny Cook's death.

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 leads 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 woman who fell to her death from the roof of a church. With Hawkes help, Stella realizes that the body was thrown off the roof to mask the true cause of death. The detectives soon realize 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.

Terrell Davenport and Octavia Figueroa are the only survivors of a brutal slaying and robbery at a fast food restaurant that leaves Danny and Aiden scratching their heads when they can't find a suspect until they take a closer look into the life of one of the survivors. Mac and Stella investigate the death of a man who recently had his leg amputated, only to learn that there was no medical reason whatsoever why the limb had to be removed.

Stella and Aiden investigate after finding the body of a teenage girl in a creek so soon realise 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 belongs to a young man named Aaron Moreland, only to learn that the body they have cannot possible 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 who 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.