Did the premiere of *IT: Welcome to Derry* disturb you? Prepare for additional thrills. Shortly after the first episode aired, HBO Max unveiled a teaser for forthcoming episodes, vowing even more chilling moments. The two-minute clip showcases flashes of Pennywise, suggests the air force’s undertakings in Derry, and alludes to another major Stephen King crossover. If the teaser is anything to go by, the caution provided prior to episode 1 likely pertains to the entire season. *IT: Welcome to Derry* broadcasts Sundays at 9:00 p.m. ET/PT on HBO and can be streamed on HBO Max.