This incredible omnibus hardcover collects the many titles from the 2005 event that rocked the DC Universe, including DAY OF VENGEANCE #1-6, the DAY OF VENGEANCE INFINITE CRISIS SPECIAL #1, RANN/THANAGAR WAR #1-6, RANN/THANAGAR WAR INFINITE CRISIS SPECIAL #1, THE OMAC PROJECT #1-5, DC COUNTDOWN #1 and WONDER WOMAN #219. OMAC robots are rampaging, magic is dying, villains are uniting, and a war is raging in space. And in the middle of it all, a critical moment has divided Earth's three greatest heroes: Superman, Batman and Wonder Woman. It's the DCU's darkest day, and long-lost heroes from the past have returned to make things right in the universe...at any cost.