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Season guide

CSI: Crime Scene Investigation: Season 9

24 episodes Premiered Oct 9, 2008 Updated Sep 25, 2026
Previously on CSI: Crime Scene Investigation

Season 9 Lore Primer

Key plot threads, lore context, and character stakes you need to remember before diving into this season.

  • ⚡ Directly follows the overarching narrative developments of CSI: Crime Scene Investigation Season 8.
  • ⚡ Faction dynamics and core character alliances shift under escalating external stakes.
  • ⚡ Crucial mysteries introduced previously reach key turning points and narrative reckonings.
  • ⚡ Sets up serialized story arcs that build directly toward the climactic season finale.
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Season 9 Episodes

Episode Guide

🛡️ SPOILER SHIELD

Season 9 Progress Shield

Future titles & synopses blurred. Tap "Reveal" on any card to peek.
Binge Efficiency Engine

Season 9: Filler vs. Essential Canon

Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests.

25%
75%
Mytharc (6): Crucial lore & season climaxes
Core (18): Character development & subplots
Side Quest (0): Standalone / filler
S9·E1 Mytharc

For Warrick

Oct 9, 2008 · 45 min

After Warrick is shot in a Las Vegas alley, the CSI team comes together to deal with the aftermath.

S9·E2 Core

The Happy Place

Oct 16, 2008 · 44 min

A hypnotist bank robber becomes the prime suspect in a murder investigation.

S9·E3 Core

Art Imitates Life

Oct 23, 2008 · 45 min

After several victims are found dead while performing normal, everyday activities, the CSIs must find the reason as to why each of the victims remain upright after dying.

S9·E4 Core

Let It Bleed

Oct 30, 2008 · 44 min

The team investigates the death of a woman who turns out to be the daughter of a wanted criminal.

S9·E5 Core

Leave out All the Rest

Nov 6, 2008 · 44 min

Grissom asks Lady Heather for help when the team investigates a case connected to the world of domination.

S9·E6 Core

Say Uncle

Nov 13, 2008 · 44 min

The team has a hard time investigating a shooting in Koreatown when none of the witnesses will talk about the crime.

S9·E7 Core

Woulda, Coulda, Shoulda

Nov 20, 2008 · 41 min

The murder of a mother and her child seems to be connected to a murder case from 12 years earlier.

S9·E8 Core

Young Man with a Horn

Dec 4, 2008 · 44 min

A popular young singer is found dead outside an infamous Las Vegas nightclub, leading the CSI team to uncover a link between that crime and a murder 50 years earlier.

S9·E9 Core

CSI-19 down

Dec 11, 2008 · 45 min

When the team discovers a connection between a new murder and a serial killer, Grissom secretly joins the class of a criminal pathologist (Laurence Fishburne) to help crack the cas

S9·E10 Core

One to Go

Jan 15, 2009 · 44 min

The CSI team is shocked and saddened when, after working with Dr. Raymond Langston (Fishburne) on the "Dick & Jane" murders, Grissom announces that his time as a CSI has come to an

S9·E11 Core

The Grave Shift

Jan 22, 2009 · 44 min

The first day on the job for Dr. Langston turns from bad to worse when a simple burglary case quickly overlaps with a complicated arson and homicide case.

S9·E12 Core

Disarmed and Dangerous

Jan 29, 2009 · 44 min

The detectives search for the murderer of FBI agent Billy Ray Jackson, only Billy Ray isn't really an FBI agent, and neither are his impressively capable partners, Miles Baker and

S9·E13 Core

Deep Fried and Minty Fresh

Feb 12, 2009 · 44 min

Langston and Nick are called to investigate a murder at a fast food restaurant and have quite a task ahead of them when they discover that much of the evidence is coated in cooking

S9·E14 Core

Miscarriage of Justice

Feb 19, 2009 · 43 min

While Langston testifies in the trial of a respected Congressman, new evidence sends the CSIs back to the lab to reopen the investigation.

S9·E15 Mytharc

Kill Me If You Can

Feb 26, 2009 · 45 min

The CSI are called to three different crime scenes in one night that are seemingly unrelated, but each case's forensic evidence reveals a common link

S9·E16 Core

Turn, Turn, Turn

Mar 5, 2009 · 45 min

When the CSIs are called to a murder scene at a familiar motel, Nick is thrown for a loop as he pieces together three separate murder investigations that all took place at the same

S9·E17 Core

No Way Out

Mar 12, 2009 · 43 min

Langston and Riley are taken hostage during the aftermath of a shootout in an usually calm Las Vegas community.

S9·E18 Mytharc

Mascara

Apr 2, 2009 · 44 min

Langston is shocked when his former student is found murdered and becomes the focus of a CSI investigation into the world of Mexican wrestling.

S9·E19 Core

The Descent of Man

Apr 9, 2009 · 43 min

When a seasoned sky diver is paralyzed after free falling to earth when his parachute doesn't deploy, he turns out to be linked to the strange death-by-airborne-toxins of two wealt

S9·E20 Mytharc

A Space Oddity

Apr 16, 2009 · 43 min

When the producer of the reboot of a classic SF show is murdered at a Las Vegas science-fiction convention attended by both Hodges and Wendy (both, unknown to each other, fans of t

S9·E21 Core

If I Had A Hammer

Apr 23, 2009 · 45 min

Catherine revisits one of the very first cases she worked as a CSI when the convicted felon in the murder claims the verdict was based on faulty evidence.

S9·E22 Core

The Gone Dead Train

Apr 30, 2009 · 45 min

A series of indeterminate deaths test the deductive powers of the CSI team, who fear that a public health emergency may be in the offing. Meanwhile, a friendly rivalry over who wil

S9·E23 Mytharc

Hog Heaven

May 7, 2009 · 44 min

A band of vicious bikers is given the go-ahead to take down one of their own when it's discovered that the guy is an undercover cop.

S9·E24 Mytharc

All In

May 14, 2009 · 45 min

A cache of missing chips from a closed down casino turn up in Vegas and a string of murders follow, leading Langston to use deadly force for the first time in his career as a CSI.

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