The core investigation begins when a small executive charter plane crashes just a mile off the Las Vegas Strip, narrowly missing a major casino.

is an episode of the long-running police procedural CSI: Crime Scene Investigation , originally aired on December 12, 2012.

Jeffrey had been siphoning millions from Helen's accounts. To cover his tracks, he replaced Helen with an impostor—his sister, Marcia—and sent a private investigator who had uncovered the fraud onto the ill-fated Chicago-bound flight. He sabotaged the plane to kill the investigator and destroy evidence. Character Arc: Sara’s Relationship Strain

Five people are killed in the accident. Because the aircraft was a private charter with no manifest, the CSI team’s first challenge is identifying the victims.

The episode features a dual narrative focusing on a tragic aviation disaster and the personal relationship strain between Sara Sidle and her husband, Gil Grissom.