October, 1969. High school senior Pete Ebbons awakens with amnesia and discovers that everyone in Portsmouth, Ohio has mysteriously vanished. He soon finds out that the entire town is surrounded by a towering two-hundred-foot concrete wall and that he's trapped inside with no means of escape. His lifeline is Meredith, the only person he can contact on his walkie talkie. With Meredith's help, Pete attempts to escape the deserted town and regain his memory. But before long he wonders if Meredith will be his savior or his total undoing in this psychological thriller.