The World's Greatest Superheroes are here with this slipcase edition of DC Entertainment's Blu-Ray/Graphic Novel combo packs. This new collection features the Blu-Ray/DVD films JUSTICE LEAGUE WAR, BATMAN: YEAR ONE, SUPERMAN: DOOMSDAY, BATMAN: GOTHAM KNIGHT, WONDER WOMAN: GODS & MORTALS and JUSTICE LEAGUE: CRISIS ON TWO EARTHS, as well as the groundbreaking graphic novels that influenced them. These six one-of-a-kind combo packs are packaged together in an exclusive slipcase.