Departure (2019)

S1E15 Desperately Seeking Serena

Serena's life spirals into turmoil with the unexpected return of her former friend, the wicked Georgina Sparks. Meanwhile, Nate finds an unexpected connection with Vanessa, surprising everyone. Blair devises a scheme to undermine her fiercest competitor, Nelly Yuki. In a troubling outing with Georgina, Serena becomes convinced that her non-alcoholic drink has been tampered with. On another front, Jenny finds herself smitten with a dog-walker named Asher Hornsby, who just might be her pathway to lasting popularity.