A brutal murder in the mountains of Montana's Yellowstone country is the first in a series of related violent crimes. When a billionaire's ex-wife is kidnapped from his massive Montana ranch, he hires private investigator Brian McKay to get her back and to catch the kidnappers. Next, a
T. rex
dinosaur skull goes missing from a museum on the ranch. Brian's niece, Darcy McKay, indomitable graduate student at Montana State University, joins Brian investigating the crimes. Their lives are endangered as they run up against a disgraced financial executive, a pair of vicious brothers, a quirky security consultant and a blood-curdling logging machine in attack mode.