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

The Upside Down has always felt like the heart of ‘Stranger Things‘. It looks like Hawkins, but something is clearly off.

The creators of Stranger Things have admitted they broke one of their own rules during the latest episodes of the show. The ...

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

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

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 ...

Brenner’s notes explain that the Upside Down is a wormhole connecting Hawkins, Indiana to another dimension. Dustin dubs that ...

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

Stranger Things' Season 5 Volume 2 has finally dropped on Netflix, and here's what happens in episodes 5, 6, and 7 and what ...

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 ...