As 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.
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
Though finally the new queen of Constance, Monet yearns for a real rivalry with Julien. Obie asks for Julien's help managing their friends ahead of meeting Grace's family. Max gets back at Alejandro and Luc at Amnesty Ball. Chaos ensues.
Max, Audrey, and Aki navigate the growing complications of being a triad. Kate enters an uneasy alliance with a former foe. Julien weathers her quest to destroy Gossip Girl alone - until a shocking implication hits too close to home.
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.