Season 12

21.09.2011 · 44 Min.

After multiple attacks on a public tram, the team has just one witness and a lot of questions.

28.09.2011 · 44 Min.

When three people confess to killing a family, the team must decide who is telling the truth.

05.10.2011 · 43 Min.

During a date, Stokes discovers decomposing body parts in part of an art exhibit; D.B. Russell deals with a staff member confrontation.

12.10.2011 · 44 Min.

The investigators attend the gala grand opening of a mob museum, only to witness an attempted hit on mob lawyer and former mayor Oscar Goodman.

19.10.2011 · 43 Min.

The CSI unit investigates when Frank, an apparent murder victim, sits up and needs help but is he just another victim?

02.11.2011 · 43 Min.

The murder of a popular sideshow performer sends the team behind the scenes at a carnival freak show.

09.11.2011 · 44 Min.

The CSI crew is stumped when they discover a disembodied brain at a crime scene where all the other brains are accounted for.

16.11.2011 · 43 Min.

Three new murders related to three unsolved (or incorrectly solved) crimes from the past come back to haunt the CSIs.

07.12.2011 · 44 Min.

The murder of a retired Army Ranger brings the FBI in on the case, to Russell and Catherine's initial chagrin.

14.12.2011 · 44 Min.

When a man's dead body turns up naked in the bed of Doc Robbins' wife, the detectives try to "just work the scene" without bringing their pre-judgments to the table, but it sure looks like a case of Death During Adultery.

18.01.2012 · 44 Min.

Catherine's friend Laura's mogul husband Mark has a lot to hide behind his successful international corporation, and he's hired a crack team of assassins to carry out the murders of anyone who might be aware of what he's doing, and that includes Laura's lawyer and Laura herself.

25.01.2012 · 44 Min.

The CSI team says goodbye to Catherine Willows as she makes a life-changing decision.

08.02.2012 · 44 Min.

When a woman is found dead and her hair is done up '70s style complete with vintage clothes, the CSI team discovers clues that point to a killer with a hair fetish.

15.02.2012 · 43 Min.

Russell seeks advice from a former colleague during an investigation into the death of a man's ex-girlfriend.

22.02.2012 · 44 Min.

When a house is stolen completely off its foundation, the CSIs are on the case in search of answers. Meanwhile, new CSI Julie Finlay showcases her skill in blood analysis.

29.02.2012 · 43 Min.

When a blackout cripples the city, the CSIs must revert to old-school methods to solve the case of a missing child.

14.03.2012 · 44 Min.

When a photo of a dead college student starts trending on the Internet, the team steps in to investigate.

21.03.2012 · 44 Min.

The team has few leads to go on when investigating a robbery-homicide at a themed wedding

04.04.2012 · 43 Min.

When the CSI team is called in to investigate a man who is shot at point-blank range in a local casino, they shut down the entire building to find their killer.

11.04.2012 · 44 Min.

When Stokes learns that a man he helped put in prison is going to have his conviction overturned, the CSI team needs to prove the killer is guilty again or he will be released.

02.05.2012 · 43 Min.

When a bomb kills an off-road race truck driver mid-race, the CSI team is called on the scene to investigate why.

09.05.2012 · 44 Min.

The investigation of a triple homicide leads to the discovery of corruption running rampant throughout the LVPD. The closer they get to the truth, the more serious are the repercussions. To be continued...