Season 12

01 73 Seconds Episode 121st September 2011 After multiple attacks on a public tram, the team has just one witness and a lot of questions. 02 Tell-Tale Hearts Episode 228th September 2011 When three people confess to killing a family, the team must decide who is telling the truth. 03 Bittersweet Episode 35th October 2011 During a date, Stokes discovers decomposing body parts in part of an art exhibit; D.B. Russell deals with a staff member confrontation. 04 Maid Man Episode 412th October 2011 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. 05 CSI Down Episode 519th October 2011 The CSI unit investigates when Frank, an apparent murder victim, sits up and needs help but is he just another victim? 06 Freaks & Geeks Episode 62nd November 2011 The murder of a popular sideshow performer sends the team behind the scenes at a carnival freak show. 07 Brain Doe Episode 79th November 2011 The CSI crew is stumped when they discover a disembodied brain at a crime scene where all the other brains are accounted for. 08 Crime After Crime Episode 816th November 2011 Three new murders related to three unsolved (or incorrectly solved) crimes from the past come back to haunt the CSIs. 09 Zippered Episode 97th December 2011 The murder of a retired Army Ranger brings the FBI in on the case, to Russell and Catherine's initial chagrin. 10 Genetic Disorder Episode 1014th December 2011 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. 11 Ms. Willows Regrets... (1) Episode 1118th January 2012 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. 12 Willows in the Wind (2) Episode 1225th January 2012 The CSI team says goodbye to Catherine Willows as she makes a life-changing decision. 13 Tressed to Kill Episode 138th February 2012 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. 14 Seeing Red Episode 1415th February 2012 Russell seeks advice from a former colleague during an investigation into the death of a man's ex-girlfriend. 15 Stealing Home Episode 1522nd February 2012 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. 16 CSI Unplugged Episode 1629th February 2012 When a blackout cripples the city, the CSIs must revert to old-school methods to solve the case of a missing child. 17 Trends with Benefits Episode 1714th March 2012 When a photo of a dead college student starts trending on the Internet, the team steps in to investigate. 18 Malice in Wonderland Episode 1821st March 2012 The team has few leads to go on when investigating a robbery-homicide at a themed wedding 19 Split Decisions Episode 194th April 2012 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. 20 Altered Stakes Episode 2011th April 2012 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. 21 Dune and Gloom Episode 212nd May 2012 When a bomb kills an off-road race truck driver mid-race, the CSI team is called on the scene to investigate why. 22 Homecoming Episode 229th May 2012 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...