While the school takes drastic measures to smoke out Gossip Girl's identity, a blind item threatens to put an end to a Constance couple. Julien and Max uncover shocking family secrets. Zoya turns to an unlikely ally for help.

Tensions run high as Zoya reluctantly celebrates her birthday. Audrey levels with Aki. Kate gets an exciting opportunity.

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.