Set on Christmas Eve, eight days after the war ends, survivor Kate discovers a mysterious radio signal and befriends the voice. As she embarks on a journey to find its origins, Kate encounters the isolation and horror of a nuclear war and the failed hope of those who survived.

In 1983, a group of High School students in a day of detention must run for their lives when a teacher in a wheel chair turns out to be an ex black ops soldier having a murderous flashback.