While out shopping for new outfits at the New Gotham Mall, Harley and Ivy stumble across a possible recruit…but are they recruiting for good or for bad? And what loser(s) would dare to show up and ruin their shopping extravaganza? A very pissed-off Clock King and a butthurt Riddler. Meanwhile, Nightwing and Batgirl follow up on a lead that sends Harley reeling…as many villains’ plans come to light. Everyone is out to tear our girls apart!

Harley Quinn and Poison Ivy, a.k.a. Harlivy, a.k.a. the DCU’s most favoritest couple. They’re inseparable, right? Right? Well, maybe not. While Ivy focuses on prepping for her new job with the Legion of Doom and Harley dives mallet-first into her role as a member of the Bat-Family, the DCU’s most favoritest couple find themselves stretched thin. But are they at their breaking point?

As Ivy becomes increasingly engrossed in her new job, and increasingly tempted by an old flame who has re-entered her life, Harley finds herself assisting Batgirl on an important mission that goes horribly awry. Meanwhile, Clayface and King Shark have been pursuing Harley, confused about their old friend's new allegiances.

The Bat-Fam, Black Mask, and Lady Marabunta finally face off, while Ivy, Knockout, Bella, Livewire, and Nightfall break Porcelain out of Blackgate Penitentiary! Meanwhile, Harley visits an incarcerated Bruce Wayne for an unscheduled therapy-and-venting session. How much longer will Harlivy keep their secrets from each other before it’s too late?