One moment everything is perfectly normal, and in the next the power grid across the entire United States goes down and sends the country back to the Stone Ages. The lights flicker out. Cars crash. Phones and laptops quit working. Planes fall from the sky. Fires rage. Hordes of angry mobs take to the street looting and pillaging. Millions perish in the horrific aftermath. With the cities completely overwhelmed with death and destruction, the forests...