2011 • 18 Episodes
September 23, 2011
On the 10th anniversary of 9/11, Mac and the team remember specific moments from that day that were indelibly burned in their mind.
September 30, 2011
When an awkward teen is found dead, the team discovers that his efforts to win a sexy punk rock chick's heart may have gone a step too far.
October 7, 2011
When the body of a beautiful young woman is found in a stolen Ferrari, the investigation leads to a family of car thieves, but the CSIs must find the murderer before the rest of the family meets the same fate.
October 14, 2011
A night out for a friendly drink takes an unexpected turn when Danny and his rookie cops are caught up in a shooting.
October 21, 2011
The CSIs investigate when the recently paroled brother of a young basketball prodigy is implicated in a murder.
November 4, 2011
The CSIs investigate when a fraternity prank goes awry on Halloween and a pledge master is left for dead in an open grave.
November 11, 2011
When news of a high school house party goes viral, resulting in overcrowding, a collapsed porch and a teenage girl's death, the CSIs must use social media to uncover the truth about how she died. Meanwhile, Jo's final case at the FBI returns to haunt her.
November 18, 2011
As the CSIs investigate the assassination of a judge, Jo comes face-to-face with a criminal from her past.
December 2, 2011
When an important witness turns up dead, Jo is caught up in the dangerous investigation of the suspected rapist who was freed on her watch in D.C.
January 6, 2012
A charred body turns into a hot mess for the CSIs when it appears a cage fighter has been murdered by his stalker.
January 13, 2012
A home invasion investigation becomes more complicated when the victim's family turns out to be less perfect than they originally seem.
February 3, 2012
The CSIs investigate when a role-playing game turns lethal, with one player falling victim to a bona fide killer and the other kidnapped and held for ransom.
February 10, 2012
When the CSIs investigate two seemingly unrelated deaths, their separate trails of evidence lead to a surprisingly connected conclusion.
March 30, 2012
When a lab tech is murdered in a case that has eerie similarities to a 1950's cold case, the CSIs get a glimpse into what goes on in the shadows of the lab.
April 6, 2012
The CSIs find themselves immersed in the world of competitive video gaming when they discover a murder may be related to a high-stakes tournament.
April 27, 2012
A wave of brutality threatens a small New York City community when a body is found dismembered and strategically left out on four street corners.
May 4, 2012
The CSIs are called to a Brooklyn housing project to investigate the murder of a successful businessman who still felt the pull of his old neighborhood.
May 11, 2012
When Mac is shot, he finds himself in limbo between life and death and, as he fights for his life, it's up to his team to bring the shooter to justice.