Shane Casey is captured by police but soon escapes. He then leaves clues for the crime lab encrypted in dollar bills that suggest that Danny is his next target.

A murder is connected to suspicious behavior that Mac spies from his apartment while recovering from an injury, and his ex-girlfriend Peyton Driscoll may be connected to the case.

A teen is critically injured after being shot in an alleyway. The victim's younger brother witnessed the crime, but he cannot give an accurate description of the incident and shooter to the police.

The team uncovers an underground fighting league after they discover the body of a retired boxer buried under concrete at a construction site.

Dr. Hawkes is trapped in a cell block during a security breach orchestrated by a familiar face from CSI's past, and the only person who can help him get to safety is the death row inmate who murdered his sister.

Sid rules the death of a woman whose twin brother disappeared 15 years ago a suicide, but Stella is convinced that he is wrong and sets out to prove it.

The team discovers that a double homicide is related to an investigation by a pair of journalist bloggers into fraud by a company that makes gold bullion.

The team must unravel the series of events from a wild night for a group of friends--a night which ended in four dead bodies, and a fifth person wandering the streets covered in blood and wielding an ax.

The team tries to figure out who rigged a race car to go up in flames and leave its legendary driver in critical condition.

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

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

A murder trial is delayed and the suspect is released on bail after Stella discovers that the district attorney in the case tampered with the crime scene for personal gain.

CSI uncovers a plot to collect millions of dollars in life insurance after a reformed homeless man is found dead in an alley.

Mummified remains are found in a booby-trapped Manhattan penthouse that has been closed off for more than 80 years, and Mac and Stella race against time to find the people who discovered the body, who are still trapped in the building.

Mac and the team lose the Compass Killer at the World's Fair site, and they soon discover through the use of astronomy and sunrises that it's only a matter of time before he targets the next victim.

After a body falls from the 59th Street Bridge, the CSI team finds a compass near the body pointing east, and realizes it's the third victim of the Compass Killer. Meanwhile, detective Flack, still dealing with Angell's death, goes AWOL.

A big rig accident results in the discovery of an interstate trucking ring that specializes in human cargo and black market organ harvesting -- and sets off a race against time to save a hostage.

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

CSI investigates the homicide of a competitive street dancer, which leads the team to an unlikely killer who has a shocking motive.

While investigating the DNA from a murder scene, Hawkes discovers that the DNA is connected to more than a dozen cases over a three-state area. But does the city really have a serial killer on their hands, or is there another explanation?

Mac and the crime lab deal with a killer who is using compasses to leave clues to his crimes.

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

Following a spray of machine gunfire, the CSI team rises from the chaos. But when one member's life is significantly changed, it proves to be the emotional motivation they need to piece together their lives and ultimately find the shooter.