Stranger Things 4, Netflix: everything we know

Before the inter-dimensional dust from Stranger Things 3 had a chance to settle, Netflix announced a brand-new season. Now, in a shocking twist of events worthy of the Upside-Down, Netflix has dropped a new trailer, set on a chilly, Russian railroad-in-progress. Most importantly, it finally reveals what happened to one of the series' most beloved characters. Watch the jaw-dropping moment below.

What's the Stranger Things 4 plot?

Details have been kept under very tight wraps, but Netflix has revealed that the Russian location in the trailer is Kamchatka. It's a freezing wasteland, in which Hopper (David Harbour) will face enemies both human and (most probably) inter-dimensional.

Meanwhile, back in Indiana, a new enemy is coming; something that was 'buried' and 'connects everything' (that sounds suspiciously like Mind Flayer talk). The Duffer Brothers promise Stranger Things 4 to be the 'biggest and most frightening season yet'.

What's the Stranger Things 4 release date?

Netflix hasn't announced a date but, given the hype, Stranger Things 4 could air some time in 2020. Hopefully, this season's turn-around will be quicker than the last; or else we might wait on the edge of our seats until 2021.

Is this the last season of Stranger Things?

Directors Ross and Matt Duffer have said it'll be 'a four-season thing and then out', with whispers of a potential fifth instalment. With all the demagorgons and Mind Flayers and Soviet soldiers, the 80s kids from Hawkins have endured plenty of dark terrors over the past three seasons. Ross himself has said the kids are 'going to have to get the f*** out of this town! It's ridiculous!'

Ridiculous or not, Stranger Things 3 left us with some gaping questions that need to be answered.

Who's in the Stranger Things 4 cast?

As the trailer reveals, David Harbour is coming back as the apparently invincible Jim Hopper – but in what form? How did he survive? Is he in a different dimension?

We also expect our favourite monster-battling heroes to return. Stranger Things wouldn't be the same without Eleven (Millie Bobby Brown), Mike (Finn Wolfhard), Dustin (Gaten Matarazzo), Will (Noah Schnapp) and Joyce (Winona Ryder). And Dr Sam Owens (Paul Reiser) will probably crop up again, given his appearance at the end of season three.

Will Eleven (Millie Bobby Brown) regain her telekinetic powers in season four?

The internet will never stop talking about every possibility, not until season four is finally released. And probably after that too. Stranger Things is reportedly the most watched show on Netflix and has won over the world, even inspiring Secret Cinema to create a Stranger Things experience. In any case, we're monstrously excited for the future.