Stranger Things (2016 - 2026 TV Series) - Season 5 - Episode 1: – “The Crawl”

Set in November 1987, eighteen months after the Hawkins "earthquake," the town is a militarized quarantine zone. The core group conducts secret "crawls" into the Upside Down to track Vecna, who has been missing since his defeat. The episode opens with a flashback to November 6, 1983, revealing that Vecna was present when Will was first taken. Meanwhile, Holly Wheeler begins seeing a mysterious "imaginary friend" named Mr. Whatsit, who is later revealed to be Henry Creel.