A vampire and werewolf convention becomes the center of a murder investigation.

The sky is falling or at least people are. The CSI's try to figure out if it was murder or sucide after a man is dead after falling from a hotel. Across town, a elderly woman falls through her table and her husband dead in the shower. The only two witnesses to the crime are an incooperative cat and a parrot who pleads the fifth.

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

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.

When a K-9 is blamed for the death of his partner, the CSI team discovers there's more to the case. Meanwhile, Finlay and Morgan investigate the death of a high-profile divorce lawyer with a lot of enemies.

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.

Quando i concorrenti in un reality show sulla cucina, accidentalmente scoprono di star mangiando carne umana durante una gara, il team CSI è portato a indagare su un aspetto mai trattato prima nei laboratori della scientifica di Las Vegas, il cannibalismo.

Sara, Julie e Morgan si concedono un weekend di riposo in una spa di Reno. Ma lungo la via sono costrette a fermarsi, e le ferie si trasformano in un'indagine particolarmente delicata: Julie viene rapita!

Morgan, Sara and Fin try to relax at a forensics conference when a mass shooting occurs on site.

The CSI team reopens a 10-year-old murder/suicide case when the sole survivor claims her accused father was innocent.

The CSI team investigates a murder with ties to two teenaged kidnapped girls.