Cain, the first sinner, finally wants revenge on God after cursing him all those millennia ago. If he has to take the entire world with him, so be it. Looks like a job for Justice League Dark. [Author's Note: I'm aware that these actors would be too old for their respected roles. I would be casting these movies if they were to happen today even though it's for much later. It's very unrealistic, but that's how I'm doing it.]
