As the millennium approaches, the climate on Earth is getting progressively hotter, a phenomenon which makes scientists and others extremely nervous. Unease quickly turns to panic when Air Force One is successfully downed, key communications networks are disrupted, and the world's financial institutions are pushed to the brink of collapse. CIA science chief Helen Wagner and Michael Lieberman, a brilliant designer of a giant space-based solar array, must contend with techno-savvy activists who plan to use the array to cut modern society off at the knees… and start civilization over from scratch.