When a city-sized asteroid hurtles toward Earth, Superman is sent in to save the day—but the reality of the crisis may be more than even he can handle! Superman has long considered Earth to be his home, having survived the destruction of his birth planet, Krypton, as an infant. Now, thanks to a crisis of global proportions, the Man of Steel is confronted with a dangerous new status quo—Earth may no longer be safe for him, and yet he is still tasked with saving it. Featuring the writing talents of Dan Slott, making his DC Comics ongoing-series debut, and the art of Rafael Albuquerque, Superman Unlimited is a brand-new cornerstone series of the DC Universe, paving the way for every Superman fan! Collects Superman Unlimited #1-6.