In this pivotal chapter, the narrative shifts to the adult lives of the members of the Losers' Club, who have moved on from their childhood in Derry, each trying to escape the haunting memories associated with their past. However, the peace they have sought is disrupted when they receive a chilling call that draws them back to their hometown.

The chapter opens with Bill Denbrough, who has become a successful author but is haunted by the tragic loss of his younger brother, Georgie. He receives a phone call from Mike Hanlon, the only member of the Losers' Club who has remained in Derry. Mike informs him that a series of brutal murders have occurred in the town, reminiscent of the terror they faced as children. Bill is reluctant at first, grappling with his trauma, but the urgency in Mike’s voice compels him to return.

As Bill reaches out to the other members, we see their responses, each filled with a mix of fear, nostalgia, and unresolved trauma. Beverly Marsh, now a successful fashion designer, is living in an abusive relationship, while Ben Hanscom, who has transformed into a confident architect, struggles with his past insecurities. Eddie Kaspbrak, who has grown into a successful businessman, is still beset by anxieties. Richie Tozier, a comedian, and Stan Uris, who initially seems stable, show signs of their past haunting them in different ways.

Mike’s phone calls serve as a catalyst, reminding them of the promise they made as children to return if the evil ever came back. The chapter delves into each character's internal struggle as they contemplate the weight of their childhood experiences and the implications of returning to Derry. They reflect on the bonds they forged, their shared fears, and the unresolved issues that linger from their youth.

As they gather for the first time in years, the atmosphere is thick with tension and anxiety. The Losers' Club is confronted not only by the physical presence of Pennywise but also by their own psychological scars. The adult versions of the characters are clearly marked by their experiences, and the chapter highlights the emotional and psychological ramifications of their childhood encounters with the evil entity.

The reunion also reignites their childhood dynamics, with moments of camaraderie, humor, and deep-seated fears bubbling to the surface. They realize that despite their efforts to lead normal lives, the trauma of their past in Derry continues to shape them. The adult Losers must reconcile their present selves with the children they once were, setting the stage for the confrontation that lies ahead.

By the end of the chapter, the Losers' Club is reassembled, ready to face the malevolent force that has returned to Derry. The chapter ends on a tense note, foreshadowing the horrific events that they will soon confront, emphasizing that while they have grown and changed, the darkness of their childhood still looms large in their lives.