The Batman Who Laughs has unleashed his Secret Six! Now these infected heroes threaten to spread their dark infection across our world, and the only thing that might stop them is the combined might of the Dark Knight and the Man of Steel. If they fail, the planet will become the seed that grows a new Dark Multiverse—heroes will fall, villains will rise, and a new era dawns for the DCU in this explosive first arc finale that leads directly into Year of the Villain: Hell Arisen #1!

Up in the sky, in the dark of the night, trust no one—for the Secret Six walk among us. Spinning out of the devastating events of the Batman Who Laughs, Superman and Batman are together once more in an all-new monthly series—and they’re facing a terrifying new threat that could strike from anywhere. The Dark Knight and the Man of Steel must journey into the depths of Gotham City to learn which of their fellow heroes has been transformed into the horrifying horseman of their most dangerous and deranged foe ever. Our heroes will need to fight to survive, but an even more dangerous question lurks in the shadows: Can Superman and Batman even trust each other?

Following Mongul’s brazen attack on Earth, Superman’s world has been turned upside down: conflict between Atlantis and the surface world, the discovery of an immensely powerful new element, dead refugees with mysterious ties to Krypton, and expulsion from the Justice League! When Superman re-forms the experimental, antiestablishment Authority to join him in liberating Warworld, Batman comes to them with a request: join him for one unorthodox, off-the-books mission first, one he could never ask the Justice League to be a part of…and one he doesn’t expect everyone to come back from.

The League needs to prevent galactic upheaval by protecting a ruthless killer, and the only way to do that is to visit the scene of their greatest failure! But can Superman ignore the ghosts of the past to do what’s needed?

Batman teams up with the Man of Steel to track down and help those who have been infected by a ravenous, mutated Joker virus. Just one problem: they don't know who they are. A virus is spreading, and it's not just after innocent people, but some of our most powerful heroes as well. The biggest question isn't why or how, but who? The Batman Who Laughs was one of the premier villains crawling his way from the depths of the Dark Multiverse and wreaking havoc on the DC Universe. Now he has been infecting some of the biggest heroes across the world with a mutated version of the Joker virus that is coursing through him. Cue the team-up of two of the greatest superheroes in history: Batman and Superman. They decide to work together to find out who is infected and hopefully cure them before it's too late.

The Batman Who Laughs’ plot is bigger than either the Caped Crusader or the Man of Steel realized. Following a showdown with the devious killer’s first sentinel, a jacked-up, Dark Multiverse-infected Shazam!, the pair has to figure out who else has been targeted for similar transformations. Their first two guesses: someone very close to Batman and the one hero that would make failure nearly impossible-Superman himself!

Jingles sell, Batman smells, A prank war goes astray, A Batmobile lost a wheel (literally), ’Cause Jimmy stole it from the valet!Jingles sell, Batman smells, A prank war goes astray, A Batmobile lost a wheel (literally), ’Cause Jimmy stole it from the valet!