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."

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

Netflix has released the trailer for the fifth and final season of “Stranger Things.” Created by the Duffer Brothers, “ Stranger Things 5 ” picks up in the aftermath of Vecna leaving Max in a coma and spreading the Upside Down into Hawkins. At the end of the explosive trailer, Vecna arrives to go to war against the gang.

Stranger Things 5 revealed the first look at Terminator icon Linda Hamilton in the final season's first official trailer, which dropped Wednesday. The actress, also known for Dante's Peak and Children of the Corn, arrives in the role of Dr. Kay, who's surrounded by her own personal SWAT team.

Linda Hamilton is headed to Hawkins in Stranger Things Season 5, and we're convinced that the Terminator star should play a villain.

One part that broke fans' hearts, though, is a shot of Dustin visiting the grave of his old Hellfire Club pal Eddie Munson, who chose to stay behind in the Upside Down and distract a swarm of demobats so that his friends could escape last season – and subsequently succumbed to the creatures' fatal bites.