With the Winter Olympics approaching, Salt Lake City is trembling with excitement-literally. A real life earthquake has torn fissures into the city's preparations, and now forensic geologist Em Hansen has a rare opportunity to get some field work in before her home is overrun by tourists and athletes. But murder can spoil anybody's plans, and when the body of the state geologist turns up in the wake of the 'quake, the FBI enlists Em's unique expertise...