An experiment in "re-wilding" the western United States and reviving the environment seems a stunning success -- at first. A virus spread by the predators and prey relocated and now thriving in the West devastates the adult human population, raging out of control and reshaping the county. Cordoned off to separate the now much smaller populace from the dangers of virus-spreading wildlife, 100 years later, "National Park West" has become as wild as...