When local children start disappearing one by one in the town of Derry in Maine, seven children known as The Losers Club band together to deal with the problem. They find themselves going against an evil clown named Pennywise, whose history of murder and violence dates back for centuries. 27 years after their last encounter with Pennywise, children start to disappear again, thus, the group reunite to stop the demon once and for all as IT has returned to their hometown.