We finally know what the Upside Down really is in Stranger Things — get details on the major reveal in Season 5, Volume 2.

This Stranger Things season 5 episode 6 recap covers huge revelations and escape attempts from Henry's mind prison.

On Christmas Day, Stranger Things fans finally discovered the series-long mystery of the Upside Down, an alternate dimension ...

However, viewers were kept in the dark until season five's second batch of episodes, now streaming on Netflix.

After keeping us in the dark for almost 10 years, Stranger Things has finally revealed what the Upside Down actually is – and ...

Long before season 5 premiered in November, Jim Hopper actor David Harbour assured fans that "the OG storylines" would all be ...

After four-and-a-half seasons of questions prompted by “Stranger Things,” in Volume 2 of the show’s fifth and final season, ...

"I hope by the time people get to the end that it feels like there’s something inevitable about what happens," Matt Duffer ...

It's also the home of demons, so it makes a ton of sense that the Duffer Brothers would incorporate this into the final ...