Here’s how Matt Duffer explained the major turning point in the history of Stranger Things:

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

Stranger Things revealed the real origin of the Upside Down, and it flips a key element of the series on its head.

Stranger Things creators the Duffer brothers finally explain what the Upside Down is after Season 5, Volume 2.

The final showdown between the Hawkins’ residents and the Upside Down monsters has finally begun!After a long wait, Netflix released Vol 1 of Stranger Things Season 5 on November 26, 2025, and the story is now moving toward its conclusion,

Of the many mysteries that Netflix’s ‘Stranger Things’ has created over the years, the one that remained unexplained was the nature of the Upside Down. It is revealed to be a place in the first season after Eleven tells Mike,

After five seasons, nine years and about 1,000 renditions of Running Up That Hill, Stranger Things is nearly at an end. Although Will vanished into the Upside Down within the first five minutes of the show,

This article contains MAJOR SPOILERS for Stranger Things 5 Vol. 2. The fifth and final season of Stranger Things dropped a bombshell on viewers tonight when it

This story contains spoilers from Season 5, Volume 2 of “Stranger Things, now streaming on Netflix. After four-and-a-half seasons of questions prompted by “Stranger Things,” in Volume 2 of the show’s fifth and final season,