In Hawkins, the tone is set by a tragic flashback to six months prior, showing the devastation of the Starcourt Mall and the death of Jim Hopper.
As with previous seasons, Stranger Things 4 is heavy on nostalgia. The episode pays homage to classic '80s and '90s movies and TV shows, including The Breakfast Club, The X-Files, and more. The show's creators, the Duffer Brothers, have always been open about their love of retro pop culture, and it shows in the attention to detail and Easter eggs scattered throughout the episode.
Should I dive into the to 80s horror movies found in this episode?