Harley Quinn…and that OTHER Harley Quinn, well, they got a problem. Somehow, someway, one of these Harley Quinns rode off in baby Kal-El’s lil’ rocket ship before he could leave Krypton way back whenever that was. She also, just MAYBE, distracted Barry Allen before that lightning bolt could hit, and don’t get me started about all the other heroes. So now the whoooole DC Universe is all screwed up and these two HQs gotta figure out a way to put baby Supes back in the rocket before Krypton goes boom, Barry back in front of that lightning bolt, and stop that other Harley before...well, you get the picture. It’s going to be bananas.

How can Harley stop herself from screwing up the timeline if her future self has already screwed it all up? First she discovered she totally stopped Superman and the Flash from ever existing, and now she’s finding out that she totally time-traveled right over Wonder Woman’s and Aquaman’s origins too! Harley has to stop Harley, or at least try to put the pieces of the DCU she’s broken back together again. With a time machine and a tough, scary, alternate-universe Harley at her side, maybe-just maybe-she can make things right again.

After accidentally undoing the Justice League’s origin stories and kinda-sorta dooming our timeline, Harley’s done all she can to right her wrongs and bring the DCU’s heroes back, and she’s had a lot of fun doing it. But now she has found herself face-to-face with the most tragic origin in the DCU-Batman’s. Will she be able to doom Bruce Wayne’s parents to their untimely fate for the sake of the universe?

She’s traversed time and space, fixing everything she messed up, but one (pretty dang big) question Just who the heck gave Harley Quinn a time machine in the first place? The answer needs to be seen to be believed! Harley’s time-hopping, universe-screw-upping adventure comes to a close in this Starro-studded finale!

The multiverse would be a much less lively place without the hijinks and shenanigans of the one and only Clown Princess of Crime. But now it's her turn to screw it all up! Harley's been busy getting together all her tools for her heist—she's got everything she glitter, tinsel, duck tape, and more! She's ready to unleash some mayhem!