Original air date: 12/12/2012 Runtime: 42:19 min. When five people are killed in a small plane crash a mile off the Vegas strip, the CSI team is called to investigate. Also, Sara feels the strain of having a long-distance relationship with Grissom when a former lover of hers is involved with the crash investigation. Pamela Reed and Josh Randall guest star.
Original air date: 01/23/2013 Runtime: 43:21 min. The CSIs need to ace the case involving a rising tennis star. Meanwhile, the CSIs are surprised to hear Hodges is engaged to an Italian bombshell. Model Catrinel Menghia Marlon and tennis stars Chris Evert, Lindsay Davenport, Justin Gimelstob guest star.
Original air date: 02/06/2013 Runtime: 43:20 min. When CSI Mac Taylor decides to surprise his girlfriend in Vegas, he discovers she's missing and asks his friend D.B. Russell for help. Meanwhile, the CSIs investigate the loss of a local wine collector on part one of a two-part crossover with CSI:NY. Gary Sinise guest stars.
Original air date: 05/15/2013 Runtime: 43:09 min. As Russell and his team investigate a series of murders, one of their own confronts peril on a dangerous undercover mission to get close to the killer. Guest stars include Eric Roberts, James Callis, Tim Matheson, Annabella Sciorra, Ozzy Osbourne, Tony Iommi, Thomas D. Clufetos Jr., and Geezer Burler.