Story by Tom Taylor. Art by Bruno Redondo, Juan Albarran. Cover by Bruno Redondo.
Harley Quinn and Lucy pay a visit to Harley's sister, leading to an encounter between Harley and Poison Ivy. Plus, tensions grow between Gorilla Grodd and Solovar over Ra's al Ghul's plans. Meanwhile, Professor Ivo unleashes his weapon of mass destruction: Amazo. RATED T