Grams arrives in the Upper East Side as Julien sets off on a mission to stay there.

She takes her to Nick and Zoya's and the grandmother is upset about meeting him.

Things take a turn when they meet up again and the grandmother lets Julien stay in town... so long as she stays with them.

Nick and Zoya reach an impasse in their relationship when more details about the past come to light.

The father and daughter work things out.

In a harrowing development, the teachers decide to leak who sent tips into Gossip Girl on a spreadsheet, creating hysteria in the Upper East Side.

Max moves on with his life as Audrey and Aki realize he is the missing piece of the puzzle and they both realize it's time to fix things with him.

Will Max care?

Gideon is shocked when his husband files for divorce.

The drama continues to mount in the Upper East Side when Obie's sister returns and he's determined to prove her new boyfriend is causing problems.

In the end, Obie and Max expose the sister and it causes a wild development as she tells her brother the family is done with him. What is it?