Six years after his game show destroyed most of the city of Olympia, disgraced TV boss Big Man has gone into hiding. Then a highly contagious virus is released into the public, it reduces most of the population into enraged killers. A handful of survivors have taken refuge beneath the city. Realizing that his two daughters are still trapped in the city, Big Man must leave his safe haven for the first time in years and venture outside to a new horror to find his loved ones before it's too late.