Harley Quinn's back in Coney Island for a long-overdue reunion with old friends, old haunts, and...an old time machine? Yep, you read that right. A mysterious benefactor has left Harley a time machine. What could go wrong-right? Funny you should ask. Turns out the entire DC Universe-including Wonder Woman, the Flash, Aquaman, Batman, and li'l baby Supes-is thrown into chaos, and not the fun kind. But with every step Harley takes to right various wrongs, she creates another reality in the Multiverse...ones where things still suck. Worse, Starro has assembled a Suicide Squad of his own to conquer this new set of realities. With a time machine and a tough, scary, alternate-universe Harley at her side, maybe-just maybe-she can make things right again. And who the heck gave Harley Quinn a time machine in the first place? The answer needs to be seen to be believed! Harley's timehopping, universe-screw-upping adventure cannot be missed! Collects Multiversity: Harley Screws Up the DCU #1-6.