Upon arriving in town, Poison Ivy and her bestie Harley Quinn get mixed up in the sort of hijinks that can only happen in Riverdale. At a superhero-themed costume party, Zatanna manages to swap Ivy and Harley into the bodies of the town's notorious frenemies: Betty Cooper and Veronica Lodge. While Ivy (in Ronnie's body) seeks to derail Lodge's agenda from within, more than a few nefarious forces--from Jason and Cheryl Blossom to the Clown Prince of Crime himself--have their own foul plans.This groundbreaking miniseries teams up two of fandom's best-known duos, bringing the ladies of Gotham and Riverdale together for the first time! This madcap mayhem comes courtesy of Paul Dini (Harley Quinn) and Marc Andreyko (Wonder Woman '77), with art by Laura Braga (DC Comics: Bombshells)! Collects Harley & Ivy Meet Betty & Veronica #1-6.