In part one of this two-part seventh season opener Grissom and Catherine handle the case of a women'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.
As Grissom gives a group of students a tour of the CSI department, the deceased victims "wake up" and give voice to their own murder investigations: a drowning victim found in an elevator investigated by Catherine; a woman who fell off a cliff investigated by Warrick, Sophia and Greg; a soldier stabbed just after returning from Iraq with his murderer having been poisoned by embalming fluid, investigated by Nick; and two victims of a bizarre chainsaw massacre investigated by Grissom and Sara.
The team investigates a series of brutal tourist beatings that take place within the span of a few hours throughout the city, all done by a bizarre group of hooded people with strange physical features. The case gets personal for the CSI team when Greg was badly beaten trying to save one of the victims during an assault. (Guest starred Kevin Federline.)
Grissom and his team investigate the case of a woman found crucified in a church. They soon discover evidence of a love triangle dating back to the victim's high school years that could reveal who is responsible for her death.
When two young boys are reported missing, a known neighborhood sex offender, played by Alan Tudyk, is the primary suspect, initially after being portrayed as a victim of a house fire initially thought to be unrelated to the missing kids. In an attempt to extract his confession, Grissom asks for the pedophile's help in catching the boys' abductor. However, the case turns out to be much more complicated than Grissom or the rest of the CSI team ever expected.
An elderly woman, a terminal cancer patient with a heavy drinking and smoking habit, was found dead, having been impaled by a broken window as she was trying to flee an intruder; the CSIs look to the neighbor and nephew as possible suspects. Mid-investigation, Grissom receives an exact miniature replica of the current crime scene, changing his thinking on the crime, drawing a connection with the earlier rock star murder. Meanwhile, Greg attends a hearing to ascertain his culpability in the death
The CSIs investigate the death of two identical twins within a two-hour time frame, on opposite sides of town: one having been shot, the other a suicide by hanging. When the team discovers that the twins knew nothing of each other, they begin to wonder if the two cases are connected, or just a very bizarre coincidence.
The Cadillac of an infamous 1970's mob boss, Mickey Dunn, is found in a lake after he disappeared years ago. Shortly afterwards, a string of murders occur in which the killers almost eagerly leave evidence of their appearance for witnesses and the CSIs. Furthermore, an old picture of the victims standing next to Dunn outside the Desert Inn casino is planted on their bodies. The team must then find out what the connection is between the murders, Dunn and a missing policeman. Roger Daltrey of The
Catherine and Brass find a man trapped in cement near a murder victim at a construction site. However, after being rescued and ruled a suspect, the man refuses to reveal his identity. Meanwhile, Nick, Warrick and Sofia investigate the death of an old woman found in her apartment with her head in an oven, but discover that she didn't die from inhaling gas. Grissom, Sara and Greg investigate a murder at a chicken processing plant which, after another miniature model of the crime scene in discovere
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 and Nick set out to find the other victims. Catherine's probe leads to a small Nevada town where an elderly woman and her daughter were fatally stabbed and shot three years earlier. Back at the lab, Grissom prepares to leave on a four-week sab
Catherine investigates the murder of a runaway teen whose naked body is found in a desert lot behind a hotel. Helping with the case is Mike Keppler (played by Liev Schreiber), an experienced CSI from Baltimore who is the newest hire on the day shift but is filling in temporarily on the night shift since Grissom is on sabbatical. Their investigation reveals the dead girl may be the victim of a serial killer whose slayings of "Jane Does" may go back decades. (Also guest starred Ned Beatty.)
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 using the concept of "reverse forensics"; however, their plans were kept secret from even their fellow CSI co-workers, sowing th
Nick and Keppler investigate the possible selling of body parts on the Black Market after they find a charred body of an ex-con in a welding shack with several body parts removed and even replaced with household items such as a plastic pipe and an umbrella. The rest of the team investigates the death of a millionaire's wife, beaten to death with a champagne bottle in her home. Suspicion falls on the husband, who claims he found her after returning home early from a business trip. Meanwhile, Gris
Keppler finds himself having recurring nightmares about an incident many years ago in New Jersey, which get worse when a friend of his, a retired cop from Trenton (played by Len Cariou) and the father of his late girlfriend comes into town to visit. Soon, the bodies of a New Jersey police officer and a hooker are found shot to death in a hotel room, the left hand of the dead woman cut off. To Keppler's dismay, the one who found the bodies is none other than his friend; he gathers the evidence, b
Grissom is shocked when he opens the large box sent to him while he was on sabbatical (its contents previewed at the end of Leaving Las Vegas) and finds a miniature crime scene inside, especially as the case of the previous miniatures was supposed to have been closed. Investigation reveals the murder depicted has not yet taken place but is likely to occur soon, so Grissom and the team work to analyze the miniature and find the real location before a tragedy can occur. (Guest starred Kathleen Qui
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 named Ryan 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
Six showgirls are murdered in their rented house and Sara is haunted by the dying words of the last victim, as she dies in Sara's arms. The investigation reveals the women's necks were slashed with a knife and that Warrick believes he knows one of the victims; he would also find out that one of them had named his grandmother's neighbor (Ruby Dee) as their next of kin. Also, Greg gets some disturbing information from Grissom about the civil suit filed against him in relation to his killing in sel
While Grissom, Nick and Greg investigate the murder of a thug gunned down in a limo, they discover that the case not only involves recently-released rapper Drops (Method Man), but also has ties to the brother of the man Greg killed in self-defense in the "Fannysmackin" incident; this especially irritated Undersheriff McKeen, as he viewed that it would not only be detrimental to Greg's case, but would also view the LVPD in a negative light. Meanwhile Catherine and Warrick investigate the death of
Grissom sends the team out with new cases and goes to spend the evening in autopsy. While he's gone, Hodges takes over his office and assembles a team leading them to believe that Grissom wants them to work on the miniature killer case, when in fact, Hodges was on a lucky spree and wanted it to continue by finding new information about the case. While most of his team eventually quits, Hodges does discover a connection that helps Grissom. Meanwhile in autopsy, Grissom and Robbins hunt down a rat
A has-been boxer was found dead in a swimming pool at a cheap brothel outside of town. The team must not only determine which one of the prostitutes who detested him committed the murder, but also find out which one of several life-threatening acts enacted against him that night actually killed him. (Guest starred James Whitmore, in his final appearance before his 2009 death.)
During a shootout with the police, a suspect in the kidnapping and possible murder of a blackjack dealer and her husband takes his own life. Searching his ranch, the CSIs find the kidnapping victim's head mounted onto a plaque and her bones buried in the mud in a pig pen. As the investigation continues, it is revealed that the dead suspect and several others connected to him belonged to a strange cult in which it is believed that certain people are secretly intelligent reptilian creatures set on
Lady Heather returns when she is found injured after a meeting with a client at a Wild West venue. She was assaulted, but she didn't react in self defense. When Brass and Catherine come back to the crime scene, they find one of the security guards dead. As they continue to investigate, it revealed that Lady Heather was diabetic, and was in a dispute over visitation rights for her granddaughter. Meanwhile, Nick and Warrick investigate when the body of a woman is found on a street; further investi
The CSIs investigate a woman who was murdered after being electrocuted by a rigged bathroom sink. But in doing so, they find a tiny figure of the victim, but no miniature set accompanying it. An investigation would reveal that the suspect in the "Miniature Murders" was Natalie Davis, a young mentally ill person who draws and creates miniatures for a hobby. Grissom would eventually find her ventriloquist father (Jay Johnson), who would explain her personality through his "dummy". Through an assig