What caused the disaster?In order to survive, and return their lives to normality, they must find what caused the disaster, and discover a solution. A way to get the power on, water running in the pipes and the telephones ringing. A distant fortified complex, once the headquarters of NSA, promises to provide answers. Fort Meade in Maryland, known as The Citadel. Impossible to breach, yet somehow, they must get inside. When the government falls, who...