CSI: Crime Scene Investigation is a drama about a team of forensic investigators trained to solve criminal cases by scouring the crime scene, collecting irrefutable evidence and finding the missing pieces that solve the mystery.
CSI: Crime Scene Investigation is a drama about a team of forensic investigators trained to solve criminal cases by scouring the crime scene, collecting irrefutable evidence and finding the missing pieces that solve the mystery.
The CSI team investigates the suspicious death of a young actress who was killed in a questionable traffic accident which links with Greg's case of a murder of an old man beaten to death in a motel. Gangsters break into the lab and steal a body, shooting some lab workers. Meanwhile, Sara Sidle makes an unexpected visit to the lab. Ray and Dr. Robbins find something unusual in a body, which will begin an investigation into the disturbing work of "Dr. Jekyll".
Nick, Greg and Sara investigate when a porn producer and a drug dealer are murdered in an upscale Las Vegas area, and the investigation centers on the members of the affluent neighborhood. The evidence near the peeping hole links to Craig Mason, the adopted son of the deceased bathtub serial killer, Paul Millander. Meanwhile, Ray and Catherine begin to look into the work of "Dr. Jekyll".
Two office colleagues plan to rob a casino, but their misguided plot ends in murder.
A police officer kills another police officer, and the CSIs must determine if the shooting was accidental or premeditated. The evidence also suggests the death may have been racially motivated. Sara investigates a gang hit on a young boy suspected of snitching. The CSIs discover that the two cases are connected, after the dead police officer is discovered to have the victim's phone number.
Ray, Catherine and Nick investigate the death of a beloved college football coach who was murdered in his home, and his entire team comes under suspicion in the case. The investigation reveals that the death may be linked to Sara and Greg's case of a dead hooker found in a submerged car.
Two seemingly unrelated crimes are discovered to be connected to a bizarre revenge plot.
Ray searches for a missing girl being held hostage by human traffickers. He believes the victim may now be part of a Las Vegas prostitution ring.
Catherine, Nick, Sara and Greg investigate when a human head comes out of the ball return machine during a bowling tournament. Meanwhile, Ray re-investigates a murder after the convicted woman, who claimed to be innocent, hangs her herself in prison.
Nick, Greg, and Hodges take Henry (Jon Wellner), the lab's toxicologist, to celebrate his birthday at a biker bar, where they uncover a two dead bodies. Meanwhile, Ray and Catherine investigate a double murder which could be committed by "Dr. Jekyll".
Nick and Greg investigate two fatalities at a gun store shootout. Meanwhile, Catherine and Sara investigate the death of a young woman who was dumped in the woods. The cases are found to be linked after a gun at the store is found to be the same one that killed the female victim.
After finding a new dead body, Langston and Brass uncover a connection to an unlicensed doctor who may be Dr Jekyll. Willows discovers that two women found dead in a hotel were con women.
A legendary golf pro is murdered during a high-profile tournament. Golfers Natalie Gulbis, Rocco Mediate, Gary McCord, and Duffy Waldorf appear as themselves, as well as former pro David Feherty.
The CSIs investigate the deaths of two high-school students involved in illegal street racing.
Catherine, Nick and Greg investigate when the bass guitarist of the country music band Rascal Flatts is shocked during a concert, and recovers with partial memory loss and having different tastes and opinions, much to the bafflement of the CSIs as they investigate possible sabotage. Meanwhile, Ray and Sara investigate when a decomposed man is fished out of Lake Mead, which leads them into a world of governmental conspiracy.
The body of a 14-year-old boy is discovered in a field and the investigation reveals the victim has blood under his fingernails that matches a convicted killer who is in prison for murdering his wife. The incarcerated man demands to be released, claiming that someone else with identical blood killed his wife, but Ray believes the prisoner may have had the blood planted at the scene to try to gain his freedom.
Detective Vartann and Catherine pose as a couple during a 24-hour stakeout on a drug operation in an upscale hotel, which gets complicated when Archie stumbles across a dead body, which Langston and Nick have to deal with. Their investigation uncovers her links to a fetish club.
The team investigates the murder of a married couple and Ray thinks that he has finally found a suspect for Dr Jekyll, but all is not what it seems.
Hodges and Wendy take a group of students on a field trip through the crime lab. They explain in detail cases the CSIs have done while picturing themselves in the crime investigators' roles. Nick and Greg investigate when several officers start suffering from bacterial symptoms. At the end of the episode, Wendy kisses Hodges.
The team investigates the case of a student found dead near Catherine's daughter's school, leading to a world of racism and a dark secret from one of the school crew uncovered. The Rwandan Genocide is a subject in the episode.
Nick and Greg investigate the death of a legendary comedian who appears to have died under mysterious circumstances; Langston, Catherine and Sara try to solve the case of a bullet-ridden corpse.
The CSIs assist Brass in helping a family friend to solve the disappearance of her family during a car accident.
The CSIs attempt to capture the elusive Dr. Jekyll with the help of another serial murderer, Nate Haskell (Bill Irwin), who claims to know who he is.
Grissom and his team search for Sara, who was kidnapped by the so-called miniature killer and left to die underneath a wrecked car in the desert.
Grissom, Nick, and Greg investigate the death of a go-kart racer whose headless body is found yards from the highway he was racing on; Catherine and Warrick work to unravel the mysterious murder of a popular men's magazine publisher at a restaurant where patrons dine in the dark.
The team investigates the murder of a couple and their younger daughter, and the disappearance of their older daughter (Brittany Robertson), who is believed to be possessed by the devil. Meanwhile Sara and a new CSI, Ronnie, investigate the death of a homeless man found on a garbage pile.
The hanging death of a possible hermaphroditic male is connected to a tainted water supply, while the day crew investigates 40-year-old skeletal remains found at the site of a recently imploded casino. Grissom asks Sara to marry him which she accepts and Greg reveals he is writing a book about Las Vegas history.
The team investigates the murder of Weatherley Adams, a horror/slasher film actress found on the set with an ax in her back. The autopsy reveals that she was gored but that the ax wasn't the murder weapon. When Ronnie discovers a second body at the studio hanging from the rafters, she also comes face to face with the killer. Sara despairs at having death thrust in her face everyday.
The FBI's Jack Malone (Anthony LaPaglia) joins forces with Grissom to track a serial killer after a boy who was kidnapped six years ago in New York matches the profile of a murder victim in Las Vegas.
The CSI's investigate when a college freshman plunges to her death and her death is revealed to be a murder. They discover the victim had a relationship with Marlon West, a teen who was acquitted on a murder charge with the help of his younger sister, a child prodigy named Hannah. Sara handles the case and she becomes convinced Hannah killed Marlon's girlfriend and is framing him for the murder as an attempt to put him in jail and keep control of him. The whole affair ends in tragedy, with Marlon hanging himself in his cell and Hannah crushed by the news, seemingly showing that she did indeed kill the freshman. Sara burns out at the end and leaves...
Hodges stages hypothetical murders in the lab in order to give his fellow lab techs a chance to play CSI, but unbenownst to them he has other motives behind his actions. Meanwhile, after Sara's farewell, everyone tries to comfort Grissom.
A man's body is thrown from a garbage truck that is being chased by the police. The victim was a limo driver connected to a nightclub with mob ties. Warrick believes the club owner is responsible and sets out to prove it. Unfortunately, Warrick's addiction to pills and a sudden reckless lifestyle negatively impact his job. Later, Warrick becomes the chief suspect in another mob-related murder.
The body of a wealthy socialite, known for her charitable contributions, is discovered in a dumping ground along with the bodies of several dogs. The investigation reveals the victim was involved in illegal dog fighting and may have tortured some of the animals at a kennel. Meanwhile, Warrick tries to prove he is innocent of murdering an exotic dancer whose body was found in his car outside a nightclub.
Three murders occur during an annual bull-riding rodeo in Las Vegas. The first victim is a bull rider who is discovered after hours in an empty bull ring. The second is a hit-and-run victim who is linked to the dead bull rider. Later, a third victim, a local pimp, is gunned down in a saloon's restroom. The investigation reveals the crimes may be connected to an illegal bull-breeding ring.
Grissom and his team return to duty after long and bad bouts of the cold. Grissom is called on by DA Maddie Klien to be an expert witness in a Grand Jury case against a very dangerous Las Vegas gang - the La Tijera "The Scissor". They are terrorizing and murdering witnesses who could land them in jail and it is escalating. Grissom is reluctant, but Maddie insists he is the only one for the job.
The disturbing death of a 3-year-old girl found in a box has a great impact on Catherine as she searches for clues to her murder, like naming the baby after the street where she was found on and crossing the line in interrogating a suspect who turns out to be innocent.
Brass, Grissom, and Nick work the case of a female victim found in an apartment building with a gunshot wound. They also discover another victim in the apartment directly above. Drops (Method Man) becomes a person of interest during the investigation, even though he is still in jail.
The whole team look into an abundance of cases, the death of a man who burst into flames in police custody; the death of a woman with green blood which is linked to drugs; and the death of a senior couple who were in a pest control problem with their neighbors, which are all related in different ways.
The difficult star (Katey Sagal) of a TV sitcom is murdered while filming an episode in Las Vegas. The investigation reveals plenty of suspects, including her husband, the actress who is her stand-in and the show's entire staff of writers.
In part one of this two-part seventh season opener Grissom and Catherine handle the case of a woman's dead body found at Cirque du Soleil by a performer. Meanwhile, an investor at one of Sam Braun's new casinos is shot to death during a party on the rooftop. Catherine's life is in jeopardy after visiting a nightclub with Nick. Grissom finds a miniature replica of a crime scene that he is investigating.
In the second part of this two-parter Grissom investigates the murder of an aging rockstar who is found dead in his kitchen with an exact replica of the crime scene on the counter next to him. Meanwhile, Catherine probes her own abduction and learns that someone may be targeting her family.
Coming straight from the perspectives of five people: Donna, Rebecca, Jack, Lou and Ray. All with one thing in common. They're all dead. Brass and Catherine get to handle the case of Donna, who's a cop from San Francisco, moonlighting as a bodyguard. Warrick and Greg work the case of Rebecca, who's a former supermodel who died while hiking with her new husband Gavin. Nick and Sofia handle the case of Jack, a returning veteran from Iraq, who was killed in front of his wife and baby daughter who he just met for the first time. Grissom and Sara take the case of Lou and Ray whose bodies were found in Lou's garage.
Three tourists are beat up, badly. One is dead, Alfonzo. Jessica is badly beaten but is still alive. Stanley, the last tourist is saved by Greg who ends up severely hurt in turn and ends up hospitalized after having to make a life altering decision.
Grissom and Sara may be secret lovers, but they still find ways to surprise each other like when their religious beliefs surface when two nuns find a body of a woman crucified on a makeshift cross. The woman was found in a church where the priest may be a man of sin instead of a man of God.
Grissom attempts to get a confession from a neighborhood pedophile by having him help in locating two missing boys. The sex offender is the main suspect. The investigation is more complex than the team ever thought it would be.
While investigating an elderly woman's murder, Grissom receives a miniature crime scene replica; Greg attends a hearing to ascertain his culpability in a teenager's accidental death.
Identical twins are found murdered on the same night. The CSI's investigate the two separate murders only to find a twist in the investigation that leads them in another new direction.
The Cadillac of an infamous 1970's mob boss turns up in a lake, even though he disappeared years ago. A photo of current murder victims also turns up in the car, so the team must determine whether this current murder spree is related to the missing gangster.
Grissom investigates when a worker at a poultry processing plant is found dead in a stun bath used to electrocute chickens before they are slaughtered. Nearby, a miniature replica of the crime scene is discovered. It's eerily similar to two other replicas left at scenes of homicides. Also, a man and a dead woman are found stuck in cement at a construction site; and an elderly Russian woman is discovered dead in her apartment with her head in a gas stove, but Warrick thinks she was murdered.
Catherine testifies in a murder trial in which a man is accused of murdering his own mother three years ago, but the suspect is found not guilty. Catherine, however, believes he did commit the crime and that he may also have killed two other people, so she sets out to find the other victims. Grissom prepares to leave on a four-week sabbatical.
The team has a hard time trying to understand Michael Keppler, who has become a team member since Grissom's teaching hiatus. They investigate the murder of an unidentified girl who may have been killed by a serial killer who has been killing since the early 1970's.
Keppler persuades Catherine to help him fake a crime scene and deceive their colleagues in a controversial plan to catch the west coast's biggest illegal drug supplier, who is the leading suspect in the murder of an anti-drug assemblyman who was gunned down in the desert. Keppler concocts the plan when the suspect disappears and his trail grows cold after several weeks.
Nick and Keppler investigate the bizarre world of the black market sales of body parts after they find a body that has been burned and the organs removed. The rest of the CSI team investigates the death of rich woman who was killed in her own home.
Grissom returns from his sabbatical; Keppler is put into a compromising position when the bodies of a Trenton police officer and a hooker are found in a hotel room. The man who found them is a retired New Jersey cop and close friend to Keppler, who doesn't reveal their relationship.
Once he unseals a package sent to him through the mail, Grissom is floored when he finds a miniature crime scene inside. The finding is entirely more perplexing since the successive killer accountable for earlier related miniature crimes is now deceased. Grissom vows to examine the miniature and discover the actual location, when the investigation makes it clear the murder showed has yet to happen, but is probably going to happen soon.
Grissom and his team are discouraged when they find a pool of blood as they begin investigating the disappearance of a high school basketball star and his cheerleader girlfriend.Grissom's quip that the young lovers may have run off to Mexico is soon quashed by the discovery of drops of blood by Ryan's vacant parking spot at the school. After finding a letterman jacket and cheerleading sweater in the field house and a pool of Ryan's blood nearby, the team tries to determine what went awry.
The terrified eyes and cryptic words of a murder victim haunt Sara while she processes the house where several showgirls were killed.
After a man is killed in his limousine, Greg finds that the murder victim has ties to the man he had to kill in self-defense. The team finds that the brother is involved in this investigation and has to deal with him and his hostile mother.
Hodges convinces fellow lab rats Archie, Henry, Mandy and Wendy that Grissom wants them to secretly investigate the so-called miniature murders while the CSIs are in the field probing other crimes.
When a has-been boxer is killed, the CSIs must establish which of several life-threatening acts actually killed him.
Several suspects in a murder case are UFO-club members who believe shape-shifting aliens have been working to conquer the human race for centuries.
Grissom investigates when a sadistic client tries to murder Lady Heather (Melinda Clarke), who makes the probe more difficult when she refuses to name her attacker. Also, Grissom's reunion with Lady Heather makes Sara uneasy.
As the CSI's continue their search for and discover the identity of the 'Miniature Killer', Grissom and Sara's relationship gets exposed to the rest of the team as she goes missing during the investigation. The 'Miniature Killer' is finally captured, but not before a member of CSI becomes the killer's final victim.
The forensic teams come back together under the leadership of Grissom and Catherine just in time to tackle three complex murder cases.
The forensic teams are called to the hotel suite of a rising young movie star found dead in a compromising position.
The CSI team investigates a wife's suspicious death on a flight of stairs.
When one cult member turns up missing at a mass suicide crime scene, Grissom and his team investigate whether the small cult really committed suicide or were murdered.
The CSI team suspects an entire family has been murdered, but cannot prove it until they find the victims' bodies.
The CSIs uncover evidence that leads them to question whether or not a young mother's death was really a suicide.
When a police officer is killed in the line of duty, the CSIs must determine whether or not he was a victim of friendly fire.
The CSIs sift through the overwhelming evidence from a shootout with drug dealers in order to determine who is responsible for the death of a police officer killed during the incident.
The CSIs investigate the unusual death of a man found dead in a dumpster on Thanksgiving night.
The lack of evidence in a reported kidnapping case leads Grissom and his team to wonder if the case is fabricated.
Grissom and his team uncover unusual evidence in the murder of a man who looked like a werewolf.
The CSIs investigate the murder of a young man found dead in his girlfriend's garage after a night of taking drugs and partying.
Beautiful ex-showgirl from old world Las Vegas hosts a party that ends in murder.
In a CSI first, a crime will be shown from the killer's perspective.
The CSIs investigate the unusual death of a young woman whose body appears to have been used for scientific experimentation.
The CSI team explores the case of a man found stuffed down the chimney of a previous suspect's home. As they progress into the case, they encounter surprises and a few twists.
Reality show chooses Grissom and his CSI team as their subjects while they investigate smoke bombs being set off at various locations to simulate a building fire allowing the perp to commit his crime.
In the midst of a high profile murder trial, the CSIs are caught off guard when a witness's shocking confession casts doubt on the savage murder of a teenage girl.
Grissom and his team investigate the case of a psychic who envisioned her own death.
Grissom and his team investigate the murders of three teenagers involved in a rap music rivalry.
Solving the case of a wealthy defense attorney killed at her son's wedding is compromised when all of the evidence from the case is stolen along with Nick's car.
The CSIs must look beneath the surface to uncover the true story behind the death of a high-stakes gambler and ladies man.
Man accused of murdering his wife and co-workers leads the CSIs on a wild chase through a busy Vegas casino.
The CSI team holds vigil at the bedside of one of their teammates who is shot in the line of duty and may not survive.
Grissom works on a nightclub shooting with Greg Sanders, who has finally found a replacement in the lab and now only has to pass his final proficiency test. Catherine investigates a stripper found dead in a hotel room. Warrick investigates a man found electrocuted in his bathtub. Sara and Nick are called in when an 'alien' is found in a shallow grave near Area 51.
The CSIs investigate when a thunderstorm washes up a body in the city storm drains. Murder is soon ruled out but the team makes another disturbing discovery: human bones that may have come from a murder. The only problem is locating where the body was dumped.
The CSIs investigate the kidnapping of a 13-year-old girl at the parking lot of a convenience store, which turns into a very disturbing murder. Catherine attempts to re-assert her role as a mother when her daughter Lindsey is picked up by the police for hitchhiking.
When two apparently unrelated women die under the same circumstances, Catherine and Nick discover that both women underwent various cosmetic procedures at a local spa. Meanwhile, Grissom, Sara and Greg investigate when a man is found dead in a house fumigated for termites.
Grissom, Sara and Greg investigate when a woman is found dead in the fountain of a gated community, after visiting a neighborhood swingers party. Meanwhile, Warrick and Nick investigate the murder of a landlord in a video arcade, which develops into a double homicide. Catherine requests the position of day shift supervisor from Grissom.
While investigating a chopped up body in the university grounds, the team finds out that they're dealing with the "Blue Paint Killer" again. The case gets confusing when the team discovers that the victim was male. Shortly after that they find another body, that of a female. Can they stop the killer before he kills again?
Grissom has to work with Dayshift CSI Sofia Curtis when a high school student is found dead in a hotel room after a party. Assisted by Catherine, Nick and Warrick, they find out that another girl had been kidnapped from the party. However, the father of this girl doesn't seem overly concerned about his daughter's disappearance.
The CSI team investigate when a woman is found stabbed to death. They soon discover that the woman underwent a sex change operation and have to delve into the world of the Las Vegas transgender community to find the killer.
When an unknown fingerprint suddenly appears on a piece of evidence in court, Grissom must re-open the case and find the real culprit. However, this unexplained phenomenon causes Ecklie to doubt Grissom's handling of the case. Ecklie then opens an inquiry on Grissom, and questions each of the CSIs about his effectiveness as supervisor. Meanwhile, Sara and Greg investigate the circumstances surrounding the death of a man who shot himself in the leg. After the investigation, Ecklie decides to split up the team. He gives Catherine the role of Swing Shift Supervisor despite Catherine applying for Days and assigns Warrick and Nick to her while Grissom's...
Grissom and his team work on a case of a young boy found dead in a dumpster while Catherine and her team try to find out why an inmate was left brain dead after an action by police.e.
Greg is doing his final proficiency test and he has a case to solve. Ironically, he investigates the death of a Sherlock Holmes wannabe who is obsessive to the point of recreating the great detective's living room in his home, who died from a close-range gunshot wound. The murder weapon is not found at the scene, although all of the other pieces of evidence suggest that it was a suicide. Working under Catherine, Nick and Warrick work on a case of a dead man found in his car which veered off the highway. Dr. Robbins cannot find the cause of death and it is left to the two detectives to solve the mystery. The episode ends with Greg passing his test,...
Catherine and Nick investigate a case when a severed head containing a snake is found in a newspaper stand. Warrick, Sofia and Greg investigate a shooting in a van.
When two bodies covered in tar are found, the CSIs must try to uncover their identities and that of the murderer. Sara is reprimanded by Ecklie for improper conduct.
Catherine and her team investigate when a hunter and a Kodiak bear are found dead in the mountains. Meanwhile Grissom's team look into the death of a young mother.
When Grissom's and Catherine's teams work together to investigate the death of a famous casino owner, their investigation leads them to the bizarre world of infantilism.
Grissom and his team are looking for a murderer of a man found dead in a hotel room, leading them to a convention for plus-sized people. Catherine and her team investigate the world of sports betting when a man is found dead in the woods.
Grissom and his team investigate a case where a stewardess has been violently raped and stabbed to death in her hotel room, in which Ecklie discovers parallels to a five-year-old cold case. Catherine's team assists Detective Cavaliere in the investigation of a young boy beaten to death in his own bed, but Nick and Cavaliere get into a bitter disagreement over their methods of finding the culprit.
Greg, Sara, and Gil Grissom investigate a scene of bush fire which led to the death of man and the 3rd degree burn of another woman. Catherine, Nick and Warrick solve a case involving the death of an entire family. The father is found dead, apparently from a suicide, on his bed. The mother was shot while running downstairs. Their little daughter drowned to death in the pool.
It's a busy night in the lab as the CSIs investigate four cases: A hit and run involving a stolen Hummer, the murder of a Convention Girl, the death of a body builder and the death of a boy found on a bench.
Captain Jim Brass travels to LA after Ellie asks for a favor in investigating her friend's disappearance. There, with the help of Warrick, who is in LA for a conference and a friend in LAPD, Brass finds his investigation interrupted by higher powers. While he and Warrick are ultimately able to find Ellie's friend's murderer, Brass is unable to bring the perpetrator to trial. Disappointed, he leaves LA and returns to Las Vegas.
Sara accompanies Grissom to a mental hospital where one of its inmates has been murdered inside his room. Interviewing patients prove to be harder than usual as most of them are mentally unstable. While the two CSIs are there, they uncover more than just the crime. One of the most shocking discoveries involve a patient with a dark childhood, which is still haunting him, and a nurse with a secret.
After an exhaustive day, Catherine stops by a bar where she is chatted up by another customer (played by Marg Helgenberger's real-life husband Alan Rosenberg). As she is leaving, he gives her his number on the bar's match box and lashes out when she doesn't want to kiss him. Later on that night, Grissom calls her in for a favor, as he is short on staff. A woman has been murdered and prior to her death, she was seen with the same man who was hitting on Catherine in the same bar. A similar match box with a phone number inside, found on the victim, further points to this man as the main suspect.
Sara and Greg investigate the death of two students in a dorm room. Nick, Warrick and Catherine investigate a man found dead in a 'crop circle'. Ecklie has to find out what happened to the corpse in the case he was working on, when it goes missing.
CSI Nick Stokes is kidnapped while investigating a crime scene and buried alive in a glass casket by his kidnapper. The Las Vegas Police Department receives a package with a tape and a USB key which allows them to watch Nick inside the casket, together with a request for one million dollars in cash to release him. The mayor refuses to pay the ransom, but Catherine convinces her wealthy father to provide the money. Gil Grissom schedules a meeting with the criminal to deliver the money and be informed where Nick is.
After Grissom gives the kidnapper the ransom money, the kidnapper blows himself up without revealing where Nick is buried. The team must then use all their knowledge and resources, as well as race against time, to find Nick before he runs out of air.
A gardener, outside the house, finds Tony Braun, a known drug addict and old-time Vegas casino mogul face down in his house.
When a young college girl vanishes, apparently with no trace, the CSIs investigate. They find a lot of strange evidentiary odds and ends that point in many directions, but they all turn out to be dead ends.
Grissom finds himself at odds with the Sheriff when he insists on a deeper investigation into what seems to be a suicide at a construction site.
Nick and Sara cover the case when an Army veteran's badly decomposed body winds up in a bag.
Sara and Warrick are lead by Grissom to investigate an emply apartment found with blood sprayed across the walls.
When a suspect is found burying several bodies, the subsequent investigation by Grissom et. al., appears to be an open and shut case.
Grissom and Nick take the case of a female book restorer found dead locked inside a temperature and humidity controlled "cage"
When a woman's brutalized body is found in a sandbox, Grissom and Catherine's investigation leads them into the world of S&M clubs.
Grissom, Nick, and Warrick investigate a casino heist committed by four women, while Catherine and Sara investigate a murder at a remote convenience store.
While Grissom and Catherine are away, Warrick is put in charge. He and Sara take a case when a con artist, who was involved with Brass's daughter, is murdered.
When a well-known real estate developer is found in an elevator, the CSIs are called to investigate the murder.
Grissom and Sara investigate two female bodies found hidden in pipes at a road construction site. They identify the victims as sisters who share a common link: a former prison inmate.
The team once more investigates a crime scene left by serial killer Paul Millander. Probing of the crime scene and the files from his past murders, the team realizes that all the victims shared the same D.O.B.
When a woman is kidnapped, Catherine is ordered by the kidnappers to accompany a man to deliver the million dollar ransom or else the woman will be killed.
When an extra body that doesn't belong there is found at a body farm used for forensic studies of decay, it falls to Grissom to investigate the murder.
After a fight breaks out among the players at an amateur hockey game, the goalie ends up at the bottom of a pile.
Grissom is called to investigate when four monks are shot and killed while chanting in a Buddhist temple.
On its regular run from LA to Vegas, a bus crashes, landing on top of a passing sports car and killing nine people.
Jane Galloway is a woman who lives a secluded life -- the shades are always drawn, doors are always triple-locked -- and she falls victim to a serial killer.
When an 80-year old woman is found murdered in her run-down house, surrounded by dozens of cats.
Grissom and Sara are called to the scene when a man's body that had been soaked in lye is found buried in a park.
Grissom and the team are called out when the city's former chief of detectives is killed execution-style in his home after a party and his wife and child are missing.
When a young woman's body is discovered stuffed in a shopping cart under a freeway, the CSIs investigate.
This episode introduces the other members of the cast, including Grissom's boss, Captain Jim Brass; Catherine Willows, a single mother and the number two CSI; and Warrick Brown, a young investigator angling for a promotion to level 3 investigator His chief competition is fellow CSI, Nick Stokes.
In the aftermath of the Holly Gribbs shooting, Captain Brass is demoted and reassigned as a homicide detective, with Gil getting promoted to full head of the CSI unit.
When a woman is kidnapped, Grissom, Nick and Sara take on the case. But in their search for her, they encounter more complcations than expected.
Grissom and Catherine cover a case where a severed leg is found that apparently belongs to a female body recovered from Lake Mead.
Grissom and Warrick investigate the death of a young man who is found naked in the desert, but the case becomes more challenging when the cause of death fails to match any obvious reasons.
In a clear violation of protocol, Catherine investigates a case of a rape accusation involving her ex-husband.
The full team looks into a mass murder in which a teenager and her younger sister are the only survivors of the brutal murders of the rest of their family.
Three months ago, Royce Harmon was murdered and his killer rigged the scene to make it appear as a suicide.
When a passenger is found dead on a flight to Las Vegas, the investigation falls upon Grissom and his CSI team.
A body covered in bugs is found abandoned in the desert, leaving Grissom and Sara to figure out where it came from and who killed the victim.
A woman is kidnapped from a supermarket. While investigating, Grissom finds evidence that suggests that five other women have already been killed, creating a race to find out who the kidnapper is.
A man who is on trial for the arson and murder of his wife and child implores Grissom to help prove his innocence.
After a bomb explodes in an office building and several people are injured and one is killed, the CSIs first suspect is a security guard
After a human bone is found in the desert by a dog playing fetch with its owner, Gil and Catherine have to search across a large area for clues about the body, which leads to an identification.
When a woman winds up floating in the pool at a swanky fundraiser with many local VIPs, the CSIs investigate
After a woman is kidnapped, raped, beaten, and shot, then left for dead in a comatose state, it falls upon Sara to identify her
A body suffering from head trauma found one morning in a store, near the safe, appears to have been the result of an interrupted robbery.
When a couple celebrating their anniversary is killed in front of the restaurant they have just left and their car is stolen, the CSIs investigate.
When a baby is kidnapped from a wealthy family, the investigation reveals several discrepancies in the tales told by the parents and family members.
Two women, out partying, strike a young man with their car. As it turns out, not only was he deaf but he was also dead before they struck him
Grissom, Nick, and Warrick investigate the death of a jogger who was apparently killed by a wild animal near a park
It's evaluation day for the staff, but Grissom's evaluations take a back seat when a severed head, sans body, is found in a car's trunk
A serial killer is on the loose, and the CSIs race to find the answers. The killer has a clear knowledge of forensics and has done an excellent job of leaving no clues