The first invasion of Earth was beaten back by a coalition of corporate and international military forces, and the Chinese army, but China has been devastated by the Formics' initial efforts to eradicate Earth life forms and prepare the ground for their own settlement. The Scouring of China struck fear into the other nations of the planet; that fear blossomed into drastic action when scientists determined that the single ship that wreaked such damage was merely a scout ship. Earth's government has been reorganized for defense; it now comprises a Hegemon, a planetary official responsible for keeping all the formerly warring nations in line, and a Polemarch, responsible for organizing all the military forces of the planet into the new International Fleet. But ambition and politics, greed and self-interest remain. It is up to Will Bingwen, Mazer Rackam, Victor Delgado and Lem Juke be able to create a weapon that can effectively defend humanity.