The trailer for series four of the sci-fi horror Stranger Things has been released ahead of the season premiere on Netflix in May.
Teeing up what's ahead, Netflix said: "It's been six months since the Battle of Starcourt, which brought terror and destruction to Hawkins.
"Struggling with the aftermath, our group of friends are separated for the first time - and navigating the complexities of high school hasn't made things any easier.
"In this most vulnerable time, a new and horrifying supernatural threat surfaces, presenting a gruesome mystery that, if solved, might finally put an end to the horrors of the Upside Down."
Stranger Things 4 Vol 1 premieres on Friday, 27 May, with Vol 2 arriving on Friday, 1 July.
