The research project was only for an "extended period." No one said anything about forever! Deceived and betrayed, Riley is sent back 40,000 years to be the mate of a man she’d never before met. Her journey will take her into a world fraught with dangers—a world made more treacherous by savage beasts, primitive Neanderthals, and the incursion of the aggressive Cro-Magnon man.
Surviving alone for five years in this vast wilderness, Nathan, along with his enormous dog, Demon, carve out a life in the perilous environment. Though thrown together by forces beyond their control, Riley and Nathan nevertheless find love—but can these two lost souls survive against such overwhelming odds?