It’s a cloudy day in Atlanta,Millie Bobby Brownis bleeding from the nose, and an automobile has been violently flipped over. “There’s a car,” Brown says, psyching herself up between takes, “and I’m going to move it with my brain.”

This was the sight I took in when Collider visited the set ofStranger Thingsseason 3. And when I say “set”, I mean the Starcourt, an actual down-on-its-luck mall just outside the city that the show’s production took over, infused with a healthy dose of neon lights, and transformed into a bustling life-size shopping center straight out of 1985. Trust me, walking into the Starcourt Mall felt like stepping out of Doc Brown’s DeLorean; the attention to detail put in by the set decoration and props team is absurd, down to period-specific Burger King signage, the “Now Playing” line-up on the movie marquee (The Stuff!), and, of course, actual New Coke cans littering the tables. And while I can’t tell you what exactly caused that car to get flipped over in the first place, I can say that, in typical Hawkins, Indiana fashion, something supernatural has once again made its way into town.

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Luckily, there is a ton I can tell you after walking around the Starcourt Mall set and chatting with cast members Millie Bobby Brown,Finn Wolfhard,Caleb McLaughlin,Noah Schnapp,Sadie Sink,Gaten Matarazzo,Joe Keery,Maya Hawke,Natalia Dyer,Charlie Heaton,Priah Ferguson, andDacre Montgomery. Here are more than 20 plot details and behind-the-scenes tidbits to know about Stranger Things season 3.

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