In IT, it’s 1988 in the town of Derry, Maine, and little Georgie (Jackson Robert Scott) goes outside in the rain to sail the toy boat that his older brother, Bill (Jaeden Lieberher), made for him. The boat goes down the drain. Looking into the sewer, Georgie encounters a scary clown called Pennywise (Bill Skarsgård) and disappears. The following summer, as school lets out, Bill and the other town outcasts — including pretty Beverly Marsh (Sophia Lillis) and loudmouth Richie Tozier (Finn Wolfhard) — are beset by bullies. They start to experience terrifying events of their own and notice that other kids in town are disappearing. Thanks to their new friend, Ben (Jeremy Ray Taylor), the teens discover that the waves of evil things seem to happen in cycles of 27 years and that all of it leads back to a well in the basement of a creepy old house. Bill vows to stop whatever it is that killed his brother.