CSI Episode Guide

Season 9 (2009)

Premeire: All In

This is the ninth season finale of CSI. The episode is titled "All In."

Finale: All In

This is the ninth season finale of CSI. The episode is titled "All In."

Season 10 (2009 - 2010)

Premeire: Family Affair

There's one piece of major news when CSI kicks off its 10th season: Sara is back!

Finale: Meat Jekyll

The entire CSI unit is in danger on this season finale. Not all of them will survive, thanks to their proximity to the Dr. Jekyll serial killer.

Season 11 (2010 - 2011)

Premeire: Shock Waves

Justin Bieber helped welcome fans to season 11 of CSI. He guest-starred on this episode, which we've provided a full recap of.

Finale: In a Dark, Dark House

After years of pursuit and a countless number of murders, Langston comes face-to-face with serial killer Nate Haskell inside the house where his killing spree began, on the eleventh season finale.

Season 12 (2011 - 2012)

Premeire: Zippered

A retired Army Ranger is found dead this week. As a result, the FBI is brought in for the case.

Finale: Homecoming

The CSI team investigates when three bodies are found near a campaign dinner on the show's 12th season finale.

Season 13 (2012 - 2013)

Premeire: Karma to Burn

On the 13th season premiere of CSI, Russell must beat the clock as he searches for his missing granddaughter

Finale: Skin in the Game

On the 13th season finale of CSI, the team investigates a series of murders resembling the sins in "Dante's Inferno"