The official teaser trailer for Season 5 previews a final battle with Vecna, whose complex origin story is the focal point of the play "Stranger Things: The First Shadow."

The trailer doesn't show Vecna's full face, but the Season 5 poster reveals it’s partially hidden in a red cloud. The cloud obscures one of his eyes, hinting at possible physical damage. This detail suggests he may have lost the eye during the Season 4 battle.

From left to right, Noah Schnapp, Caleb McLaughlin, Natalia Dyer, Joe Keery, Charlie Heaton, and Gaten Matarazzo in 'Stranger Things' season 5.

For those wanting to catch up before the last season ever, Stranger Things Seasons 1 to 4 are available to stream on Netflix right now, with the final Season 5 set to premiere in three parts between November 26th and December 25th, with the finale releasing on December 31st.

Netflix is dropping the teaser for "Stranger Things" Season 5 on July 16, four months ahead of the show's premiere. What we know about the fifth and final season.

The first official look at Stranger Things Season 5 is finally here, and it is everything and more that fans have been waiting for.

Netflix's Stranger Things is coming to an end in November as the fifth and final season lands on the streamer - but fans are convinced that the poster has spoiled who's set to die