Departure (2019)

S4E21 Shattered Bass

Charlie is beginning to feel more at ease with Serena and her circle, but things take a turn when she receives an invitation to the Constance Billard alumni fundraiser. As Blair contemplates her future, she finds herself caught in a dilemma between the two important men in her life. Meanwhile, Jack Bass's return to the Upper East Side triggers a series of events that threaten to unravel Chuck and jeopardize his relationships with those he cares about.