Starring heroes from Crisis on Infinite Earths! The shining city of Fawcett takes on the murky gaslit world of Gotham City as Captain Marvel finds the Victorian-era Batman prepared to take on the mightiest of mortals! At the heart of the battle a new alliance of villains comes together to destroy the future, and one world will be sent to oblivion... This extra-sized issue includes a sneak peek at what's coming up in the DC Universe!