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 latest murder case takes Detective Taylor to a whole new world and he must figure out why Cheryl Duncan looks so life-like. They also discover something shocking about the murderer while online.
After a series of heists in the city (one including Det. Chief Sinclair's house) one of the "super spies" involved is robbed of his life. The team works to solve the robberies and the murder, as both are obviously connected.