Spoiler Warning: This article contains spoilers for Stranger Things Season 5.Now that Stranger Thingsis over, one thing about the epic sci-fi series still feels frustrating, and Season 5 makes it even more obvious. The Stranger Things series finalestreamed on Netflix on Dec. 31st, 2025, closing out the year with the long-anticipated battle between Eleven (Millie Bobby Brown) and Vecna (Jamie Campbell Bower). There was also an intense and detailed look at The Mind Flayer, plenty of jokes (Erica and Murray are still the funniest), and more than a few tearjerker moments.