Evil is loose in the world. As the United States and the Soviet Union race to build their nuclear stockpiles, two extraordinary men are called upon to form an uneasy alliance. Studies in opposites – shadow and light – a Dark Knight and a Man of Steel must overcome their mutual distrust to battle a darkness that threatens humankind. And when the paths of these titans cross, a bold and exciting new chapter of history will be written . . . and nothing will ever be the same.