Larry Mitchell

When actionable evidence finally surfaces against Sean O'Neal, Upton and the team work relentlessly to build a case in secret. They discover Sean is more elusive and dangerous than anticipated.

Grissom and Willows return to help the CSI team solve a catastrophic case that paralyzes all of Las Vegas, on the special two-hour series finale.

In an upstairs/downstairs-type investigation, the CSIs look into solving two forensic mysteries: the first, the murder of a rising young movie star, amongst his entourage of best friend slackers and groupies, in his hotel suite. In the second story, the immigrant Laotian kitchen workers in the hotel may have turned against each other and committed murder. (TV-14 D)

Grissom and Willows return to help the CSI team solve a catastrophic case that paralyzes all of Las Vegas, on the special two-hour series finale.

A routine traffic stop turns into a wild police chase through the streets of a Las Vegas Latino ghetto. When all is finished, the crime scene stretches for miles, and our CSIs face an avalanche of ballistic evidence in order to find the real killer of a police officer who died on the scene, whom Grissom fears may have been the victim of "friendly fire" and not the men drug criminals they were chasing.