Seven American cities simultaneously go up in atomic mushroom clouds. American society slowly degrades into a culture of death, violence, and disease. A small group of citizens of Minneapolis, Minnesota, try to forge life in a city void of most of its population.

Nuclear terrorism comes to life when seven American cities simultaneously go up in atomic mushroom clouds. Terrorists promise there are more nukes to come, causing the majority of urban populations to flee the cities. Martial law is immediately declared, yet American society slowly degrades into a culture of death, violence, and disease. A small percentage of citizens of Minneapolis, Minnesota remain. Defiantly staying behind and trying to forge life in a city void of most of its population, they learn to deal with an entirely new way of life. They struggle to survive as disease, violence and the post-nuclear world take their toll on their ranks.