Homicides, robberies, and kidnapping are the crimes committed in the Big Apple. The criminal leaves, but the evidence is left behind in the form of thread, hair and other DNA. There to find the clues is the Crime Scene Investigators. The New York branch is headed by Mac Taylor, a systematic problem solver who is haunted by the death of his wife. Taylor's second in command is Stella Bonasera, a smart detective who is willing to stand up for her team mates. The CSI team uses the combination of state of the art equipment and old fashion crime solving skills to help bring justice.

Last season, Mac Taylor was taken hostage after being caught up in a bank robbery scheme. Will Mac survive and will this mysterious man get away with millions of dollars?

A riot at a Maroon 5 concert leaves one woman dead. Was it a police accident or was she murdered?

Mac and the team have 24 hours to find the murderer of a flight passenger and Nelly guest stars as someone in connection. Did he order the hit?

A woman who has connections to all of the powerful people in New York, including the Chief, turns up murdered and the gang tries to figure out who killed her.

A dead archaeologist takes the team on an investigative adventure involving gold watches and ancient treasure.

The CSI team investigates three simultaneous murders involving New York drug dealers.

The team investigates the body of a man found in a cellar, but discover the house that the murder took place in is miles away.

The second victim with the name Mac Taylor surfaces and the team becomes worried. Scott Wolf, Rumor Willis, and Nelly guest star.

A body is discovered in the trunk of a car that was crushed in a junkyard and Danny gets some news.

The death of an armored truck company employee has the team investigate a high tech bank robber while Danny and Lindsay expect a miracle.

A high society party leaves a woman dead while Mac discovers that he has an admirer.

Sheldon investigates a case that involves him personally while Stella and Don look into a death at a bridal store during a sale.

Various body parts show up in dumpsters around the city and the CSI team pieces together the clues in order to solve the case.

A man goes to New York to search for his missing daughter and ends up dead.

The deputy mayor is found dead at a party and the CSI team must investigate.

An eyeball drops in Stella's coffee and the team searches for the owner.

The team investigates a car bomb that blew up a house just as Adam was walking by it.

Danny, Don and Mack search for the killer of a colleague's wife while Stella attempts to ensnare the Greek consulate. Ashlee Simpson and Peter Wentz guest star.

A man is shot while riding the subway and the team investigates.

A stalker ends up getting murdered and the investigation leads the team to suspect one of the stalker's victims, who also has ties to Stella.

Media mogul Robert Dunbrook reports throwing a man out of his high story office building, but the team is unable to find his body.

Mac and the team look into the murder of a man who they later discover was a closet Neo-Nazi.

Mac suspects that a man serving time in prison for manslaughter is protecting the person who is actually responsible. Meanwhile, Lindsay goes into labor.

Stella travels to Greece to investigate her old friend Professor Papakota who she believes may be involved in a Greek antiquities smuggling ring.

A group of violent kidnappers kill Detective Angell and capture Robert Dunbrook's son just before he is scheduled to testify in court against his father.

Mack and the team get a lead on who shot at them while they were in the bar. Danny who was shot and now is in a wheelchair gets assurance that he will recover. Flack returns to work after his girlfriend dies.

A man criminal going by the name Gravedigger uses technology to get his revenge on a team of doctors. Mac recalls why he joined CSI in the first place.

The team investigates murders made to look like a suicide committed by a man who appears to be stuck in time.

The team searches for a female serial killer after they find evidence linking her to multiple crime scenes. Meanwhile, Sheldon pushes Danny to work harder to walk again.

The team investigates a street dancer found dead next to a pile of cash while the survivor of the attack struggles to remember what happened

The team investigates a murdered software company CEO who bled out through his orifices. Meanwhile, the team suspects that Sheldon is hiding something.

The CSI team learns their case involving human trafficking relates to a case worked on by Ray Langston.

After the team realizes a suicide was staged, they give chase after the Compass Killer who alluded them earlier. Meanwhile, Flack drinks himself to rock bottom.

Mac and the team hunts down the Compass Killer.

The team searches through a booby trapped apartment set up by a revenge seeking inventor from the 1920's.

The team investigates the death of a former homeless man who was run over just before Christmas. Guest starring Kim Kardashian and Pat Monahan from Train.

Stella is forced to compel a judge to give a killer bail. The District Attorney uses his knowledge of criminal investigations to get away the perfect crime of murder. Guest starring D.B. Sweeny.

The team investigates a female football team after their quarterback is murdered. Danny gets a lead on his stolen badge.

The team investigates a cult of blood drinkers after one of their members is found murdered.

The team investigates the death of a race car driver after his car is sabotaged. Guest starring Danica Patrick.

The team investigates a room full of dead bodies and a bloody man who has no memory of what happened to his friends.

Just before St. Patrick's Day, the team investigates the death of an investigative journalist who who was murdered before breaking a big story.