The CSIs investigate a murder that is linked to a competitive video-gaming tournament.
A lab tech is murdered, and the death has eerie similarities to a 1950s cold case.
Investigations into two seemingly unrelated deaths lead to a surprisingly connected conclusion
A role-playing game turns deadly when one player is murdered and another one is kidnapped and held for ransom
A home-invasion investigation becomes complicated when the victim's so-called perfect family turns out to be not so perfect after all.
The CSIs investigate when the charred body of a cage fighter is found. The probe reveals that the victim may have been murdered by a stalker.
Jo investigates a suspected rapist who was freed on her watch in Washington, D.C., after a key witness turns up dead.
The CSIs investigate the assassination of a judge. Meanwhile, Jo comes face-to-face with a rapist she may have had a hand in getting previously acquitted on an earlier charge.
The CSIs use social media to investigate a teen's death at an overcrowded high-school house party that got out of control. Meanwhile, Jo's final case at the FBI returns to haunt her
A Halloween fraternity prank goes awry and a pledge master is left for dead in an open grave.
The recently paroled brother of a young basketball prodigy is implicated in a murder.
When Danny and his rookie cops are caught up in a shooting, Det. Mac Taylor (Gary Sinise) tracks down a possible suspect
A woman's body is found in a stolen sports car, which leads the CSIs to a family of car thieves whose lives may be in danger if the killer isn't quickly captured
The CSIs investigate the death of a teen who tried to win over a sexy punk rocker (Aly Michalka) and may have ventured too far into her world
The eighth season begins with Mac and the team recalling moments from 9/11 on the 10th anniversary of the tragedy.