Twins Alex and Sasha are in the small town of Maple Junction and their summer vacation quickly turns into a summer nightmare. Everyone is being controlled by an unknown sinister force. A primitive sinister force. On the streets it's back to the Stone Age. Calling for help is not an option. The only allies are a group of small children. The twins can trust no adult, not even their own father, and at times--not even themselves. But someone must stop the madness.