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Stranger Things trailer: Season 3 promises 'one summer can change everything'

It's almost time to return to Hawkins, Indiana ... and the Upside Down.

Netflix teased the third season of Stranger Things Wednesday in a new trailer ahead of the season's July 4 launch.

Everyone's favorite '80s-inspired sci-fi show promises more retro costumes and nose bleeds, as well as a fair few growing pains.

Now playing: Watch this: Netflix teases Stranger Things season 3 in new trailer

The tagline for the season, "one summer can change everything," suggests the kids of Hawkins, Indiana, have yet more ordeals ahead as they negotiate the challenges of becoming full-fledged teens while tackling at least one bone-chillingly scary monster.

"We're not kids anymore," Mike says in a voiceover. "I mean, what did you think? That we're just going to sit in my basement all day playing games for the rest of our lives?"

The trailer sparks so many questions. Will Dustin ever find love? Why doesn't Joyce feel safe? Is romance in the cards for Steve and his new co-worker? Who's the man with the gun? And why is there no sign of Erica Sinclair, Lucas' little sister, who with only few lines was the breakout star of season two?

Unless there's another trailer, we'll have to wait until July 4 to find out for sure. If the meantime if you're itching for more, you can check out some of the still images for the upcoming season posted by Netflix on Twitter -- one of which includes a kiss between Eleven and Mike.

Here's everything we know about season 3 of Stranger Things so far. 

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