 A group of scientific intelligence experts must track down the source of a mysterious seismic signal that is causing pinpoints of destruction around the globe. When a Russian ship is disabled, tensions between Russia and the U.S. are revived, threatening to re-ignite the Cold War. When the team finally uncovers the truth about the Krone experiment, they discover a ticking doomsday clock, one whose hands cannot be turned back, whose unstoppable pendulum swings through the very Earth itself...