What Is It?
The 2022 Netflix American science fiction horror drama TV show Stranger Things (Season 4), which was split into a Part 1 & a Part 2.
This is how Wikipedia describes this TV show:
Nine months after the events at Starcourt Mall, the separated friend group must face a new supernatural threat known as Vecna that appears in Hawkins. Meanwhile, Joyce Byers and Murray Bauman try to help Jim Hopper escape from a prison in Kamchatka, Russia. The season is split between three main plot lines.