'IT: Welcome to Derry' Episode 4 drops this Sunday—here's what to know

Entertainment Nov 16, 2025

Episode 4 of "IT: Welcome to Derry" lands on November 16, 2025, taking us back to the spooky streets of Derry in 1962.
This mid-season episode, called "The Great Swirling Apparatus of Our Planet's Function," digs deeper into the town's creepy connection with Pennywise and promises some big reveals.

What's happening and where to watch

A preview shows Dick Hallorann (Chris Chalk) in a tense interrogation, while Marge (Matilda Lawler) has a run-in with General Shaw about mysterious deaths—so expect secrets to unravel.
Catch the episode on HBO or Max in the US, or Sky Atlantic/NOW if you're in the UK. New episodes drop every Sunday!