The women of the hit WB Online webtoon burst into the animated DC Universe in an action-packed miniseries! Unable to resist a golden opportunity to fund her beloved lion preserve, Catwoman heists a vial of a mysterious formula for a shady company—only to discover she's actually working for Poison Ivy and mallet-wielding sidekick Harley Quinn. That sets off an every-villain-for-herself chase across Gotham's rooftops—and attracts the attention of both Batgirl and officer Renée Montoya, who reluctantly team up to join in the fray!

Detective Renee Montoya, investigating the theft of a mysterious chemical compound, follows the deadly trail of Poison Ivy and Harley Quinn, while Ivy tries to convince Catwoman and Batgirl that they should cooperate with her.