A source-book for the United States in the world of Twilight:2000. It describes events in years before war and the attack on the U.S. and the aftermath of the attack, including the future history through May 2001 and the change in weather patterns. Also includes discussions of the Civgov, Milgov, and New America, including their current territories and a summary of available military forces. Maps showing the location of each major nuclear strike and details of the more important ones. A state by state rundown of local conditions and how the change in weather is affecting them. Finally the module contains a bonus of the Twilight Citymaker. A collection of over 100 different geomorphic map sections of various urban areas so referees can put together towns, villages, fortified strong-points at a moment's notice.