Six weeks ago, former US Marine Eddy Powers purchased shares in a massive, high-tech, state-of-the-art missile silo to protect his family. He made this decision based on easing his unspeakable nuclear fears. But when reality strikes with devastating suddenness, destroying cities in a searing blast across the nation, all of it seen by horrified Americans on TV and the Internet. Who pushed the button? Will the last day on Earth ever end? But Powers and his family are the lucky ones.
Or are they?
Holed up in their high-tech sanctuary, with a maximum capacity of five hundred people, the "city" is pushed to its limits---and so are the people locked inside. Tensions rise. Panic erupts. Outside, armed looters surround the bunker----and they will do anything to get in! Powers must convince the others that they must work together as a team to survive. And they must kill without mercy just to stay alive!