In October 1988, Bill Denbrough crafts a paper sailboat for Georgie, his six-year-old brother. Georgie sails the boat along the rainy streets of small town Derry, Maine, only to have it fall down a storm drain. As he attempts to retrieve it, Georgie sees a clown in the drain, who introduces himself as "Pennywise the Dancing Clown". Pennywise entices Georgie to come closer, then bites his arm off and drags him into the sewer. The following summer, Bill and his friends Richie Tozier, Eddie Kaspbrak, and Stan Uris run afoul of older bully Henry Bowers and his gang. Bill, still haunted by Georgie's disappearance, calculates that his brother's body may have washed up in a marshy wasteland called the Barrens. He recruits his friends to investigate, believing Georgie may still be alive. Ben Hanscom, one of Bill's new classmates, learns that the town has been plagued by unexplained tragedies and child disappearances for centuries. Targeted by Bowers' gang, Ben flees into the Barrens and meets Bill's group. They find the...