While Mary and Alice continue their sisterly bonding, Ryan, Luke and Sophie are desperate and willing to do almost anything to stop them. Renee is forced to revisit her heartbreaking past. Meanwhile, Marquis grows more unhinged and throws a spectacularly sinister soiree at Wayne Tower... and everyone is invited.

Ryan, Sophie and Jada come together to formulate a plan to stop Marquis, while Mary seeks to make amends for the harm she did as Poison Ivy. Meanwhile, Alice continues to spiral out of control and contend with her mental demons.