Nora Kelly, a young curator at the Santa Fe Institute of Archaeology, is approached by historian Clive Benton with a once-in-a-lifetime proposal: to lead a team in search of the so-called "Lost Camp" of the tragic Donner Party. This was a group of pioneers who earned a terrible place in American history when they became snow-bound in the California mountains in 1847, their fate unknown until the first skeletonized survivors stumbled out of the wilderness, raving about starvation, murder-and cannibalism.