Investigating a plane crash in the Smoky Mountains in North Carolina, forensic anthropologist Temperance Brennan discovers in a most disturbing way that the evidence doesn't add up. Tripping over a coyote-chewed leg at the crash scene, she performs a little mental arithmetic and realizes that this victim wasn't on the plane. Once again, Brennan's high-tech DMORT snaps into action faster than you can say "Disaster Mortuary Operational Response Team."