'Stranger Things' Season 3 Final Trailer Reveals A Whole New Evil

Stranger Things Season 3 Final Trailer

"You let us in. And now... you are going to have to let us stay."

Evil beings new and old have returned to Hawkins in the third season of Netflix's "Stranger Things," and today brings the final trailer for what looks to be an insane showdown between the kids and otherworldly monsters from The Upside Down. The trailer offers a deeper, more disturbing look into the all-consuming nightmare that the gang must face, as the Mind Flayer is searching for a new host, and is planning to destroy literally everyone and everything.

Check out the trailer below, along with the full plot synopsis.

"It’s 1985 in Hawkins, Indiana, and summer’s heating up. School’s out, there’s a brand new mall in town, and the Hawkins crew are on the cusp of adulthood. Romance blossoms and complicates the group’s dynamic, and they’ll have to figure out how to grow up without growing apart. Meanwhile, danger looms. When the town’s threatened by enemies old and new, Eleven and her friends are reminded that evil never ends; it evolves. Now they’ll have to band together to survive, and remember that friendship is always stronger than fear."

"Stranger Things" returns to Netflix on July 4th!