“We discover, through the Batman Who Laughs series that the Batman Who Laughs have been working on this massive plan since Metal. What it is is, he has sleeper agents throughout the [DC Universe]. They’ve been infected, and they’re slowly turning into the worst versions of themselves,” Williamson teased. “Some of them know they're changing, some don't. Some aren't aware it's kind of like a Jekyll and Hyde situation where they're not aware of [what] the other side is doing.
“This is happening to six people — we’ve been calling them the new Secret Six — who have been turned. But who could be turned? Who are they? [Batman and Superman] have to go out and figure it out. But that means spying on other heroes, friends, allies. We talked about the end of The Thing, where it’s the two of them and they’re like, ‘It could be you, it could be me, but now we have to work together.’”