Stranger Things 4 will be on Netflix this spring and it seems like ages since we saw the Hawkins gang fight the Mind Flayer at the Starcourt Mall. The third series was a full three years ago, so it wouldn't be unusual if you'd forgotten what had happened.
We'll remind you of the basics below (so, you know, spoiler alert) but also the essential information you want to know in the run up to the fourth series. Read more TV news, here.
In a note from creators, the Duffer Brothers, Matt and Ross, series four will also be the penultimate season for Stranger Things, which first debuted on Netflix in 2016. They wrote in a statement: "With nine scripts, over eight-hundred pages, almost two years of filming, thousands of visual effect shots and a runtime nearly twice the length of any previous season, Stranger Things 4 was the most challenging season yet, but also the most rewarding one."
