In the aftermath of both solar and political storms, Prime Minister Robert Sutherland attempts to steer the country on a more even course. An assassination on British soil, however, unleashes a chain of events that threatens to develop into a crisis even more serious than the one from which the country has recently emerged. An invisible global enemy, not playing by the rules and operating outside national boundaries, appears to be bent on our destruction, leaving an entire country unsure as to who is friend and who is foe.