In the near future, New York City is destroyed by an apocalyptic event; eight survivors hide in the basement of their large apartment building which has now been reduced to rubble. Later after settling in, a team of armed men in HAZMAT suits come into their shelter and attack the survivors who were thinking that they were the rescue team. After realising that the men in HAZMAT suits are hostile, the survivors must find another way to escape as well as maintain their own sanity in order to survive.