To help him on his mission, Bill recruits a team of fellow outcasts. But as they set out on their expedition, they soon make a worrying discovery. The teenagers realize that Georgie was not the first child to vanish under tragic circumstance in Derry. The sleepy town has in fact witnessed a series of mysterious disappearances stretching back over hundreds of years.
As they edge ever closer to discovering the awful truth about Georgie’s disappearance, the group is beset by a number of paranormal encounters. The evil spirit behind the hauntings appears in a number of guises, including a menacing-looking clown. Despite its shape-shifting nature, however, the teens soon realize that they are all being terrorized by the same entity, which takes the form of their darkest nightmares.
The monster, which the gang refer to as “It,” is later discovered to be called Pennywise. The nightmarish creature lives in the sewers of Derry and only awakens once every 27 years to feast on the town’s children. The friends vow to put an end to Pennywise’s reign of terror over the town. But to do so, they must first face up to their own deepest fears.