Fans finally got answered about the Upside Down in Stranger Things season 5. Here's more of what we know about this world.

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

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

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

It's certainly satisfying to get the answers about the Upside Down that have evaded audiences for so long, but, in some ways, ...

Stranger Things' has pulled back the curtain, finally explaining to fans the truth of what the Upside Down is after nine long ...

Volume 2 finally revealed the truth behind the Upside Down, which the creators of 'Stranger Things' confirm has been planned ...

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

This Stranger Things season 5 episode 7 recap explores how the group reunites and discovers the truth about the Upside Down ...

Stranger Things Season 5 does something very sneaky and very smart. It turns Season 2 of the show into the emotional and ...

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

Though the second part of the show's fifth season is being released Christmas night, the series finale won't be available to ...