As the team investigates the death of a man visiting Las Vegas for a health and wellness convention, a fiery explosion traps Allie Rajan in the basement of an abandoned hospital.
Tropes:
- Big Damn Heroes: Just as the Serial Killer is threatening to shoot Allie In the Back, Serena and the LVPD arrive just in time rescue Allie and arrest the Serial Killer.
- I'm a Humanitarian: The Serial Killer has been harvesting and consuming his victims' hearts and thymuses.
- Chekhov's Gun: Allie's smartwatch, which the CSIs use to locate and rescue her after she gets kidnapped by the Serial Killer.
- Continuity Nod: As the CSIs frantically search for Allie after she gets abducted by the Serial Killer, Josh mentioned how Hodges left behind clues for his rescuers after getting kidnapped by The Big Bad in Season 1. Sure enough, the team discovers a clue left behind by Allie to use her smartwatch to track her location.
- Oh, Crap!: The CSIs become horrified when they learn that the Serial Killer is a cannibal and that Allie is trapped in the hospital with him.
- Trapped-with-Monster Plot: Allie finds herself trapped in an abandoned hospital with a cannibalistic Serial Killer.
