In 2019, Jonas emerges from the cave into a strange but familiar world: the town of Winden, reeling from the recent disappearance of a young boy.

Six months after the disappearances, the police form a task force. In 2052, Jonas learns that most of Winden perished in an apocalyptic event.

A missing child causes four families to help each other for answers. What they could not imagine is that this mystery would be connected to innumerable other secrets of the small town.

27 years after overcoming the malevolent supernatural entity Pennywise, the former members of the Losers' Club, who have grown up and moved away from Derry, are brought back together by a devastating phone call.