Finn, a young professor in paleonotology, attends a conference on the West coast of Canada, but ends up staying five weeks instead of five days. It's because he has discovered a relict enviornment, in which he journeys with a prehistoric Cave Bear. The adventure continues when he encounters paleolithic clans and becomes caught up in a war for which he becomes a shaman. In the end the tribes unite to battle the Thunder Heads, electrical beings of...