Gotham city is overrun with demons, zombies and vampires who were sent by Neron to earth. Most of Gotham's villains except Two-Face, Bane, Killer Croc, Joker, Mr. Freeze, Scarecrow, Penguin, Deadshot, Man Bat, Poison Ivy, Catwoman and Harley Quinn have been turned into vampires along with Nightwing, Batwoman, Spoiler and other allies of The Dark Knight. Now, Batman has to work with his enemies as well as Members of the Justice League Dark to stop his foes and allies who have been turned into vampires as well as Neron and his demonic army.
