After five seasons, Stranger Things is coming to an end - but another portal is already opening as the creators behind the show, twin brothers Matt and Ross Duffer, tell the BBC a spin-off series is already in development.
"It's early days but we're excited about it," says Matt Duffer. "It's new characters and a new mystery, so it's different, but it will be in the same world as Stranger Things."
The pair feel that there is more to explore, but Matt's twin brother Ross explains they always saw the original story as a self-contained arc and it's definitely "the end for these characters".
The clarity around the ending had always been part of the plan, and Matt says the final scene "was the one thing we had planned from the start".
"We always knew what we were working towards so it was like our north star and we built the whole season around the final scene."
