While an incident at a nearby school finds all eyes on Gossip Girl, Julien and Zoya team up for Halloween. Audrey panics over bad news, and Obie grows suspicious of Zoya's new friend.

When Obie's mother comes to town, Zoya begins to question his nature – and nurture. Julien decides to take her brand to the next level. Aki and Max come together to support Audrey.

Zoya scrounges up guests for her annual Friendsgiving feast, Julien and Obie cover their tracks. Meanwhile, Kate and Jordan face an ultimatum from Rafa that threatens to bring Gossip Girl down once and for all.