The biggest moments from "Stranger Things" Season 5 Vol. 2, from The Upside Down's true nature finally being revealed, to Max's escape

Brenner’s notes explain that the Upside Down is a wormhole connecting Hawkins, Indiana to another dimension. Dustin dubs that world “the Abyss” because in D&D, it is “a realm of pure chaos and evil.” Image: Netflix Hopper (David Harbor) is less than enthusiastic about yet another D&D reference,

After keeping us in the dark for almost 10 years, Stranger Things has finally revealed what the Upside Down actually is – and as Dustin Henderson says in season 5, all our theories about the dark realm have been "dead wrong" so far. Well, unless you've seen the stage show, Stranger Things: The First Shadow, that is...

Stranger Things has been hinting at this reveal throughout Season 5. Look no further than its references to A Wrinkle in Time, which features wormhole-like tesseracts. Or how about Mr. Clarke fully teaching a class on Einstein-Rosen Bridges, aka wormholes?

Stranger Things has made a comeback with its fifth and final season. The season is divided into three volumes to extend the storyline as fans eagerly await episode five and volume two, which promise feature-length episodes, according to the Express.

One of the weirdest parts of the Stranger Things 5 Vol. 2 is Nancy, Jonathan, Steve, and Dustin's trip to the Hawkins National Lab in the Upside Down where they

Episode 5 of Stranger Things season 5 references events from the prequel stage play Stranger Things: The First Shadow, which most audiences have not seen.

In case you weren’t able to watch Vol. 2 at its exact release time, here’s what really happens to Holly, Nancy, Jonathan and more in ‘Stranger Things.’

Season five's second volume has some familiar padding, but it mostly satisfies as the Netflix show races toward its end.

Eight became a big character in the final season of "Stranger Things," but who plays Eleven's vindictive sister?

Warning: This story contains spoilers for Stranger Things Season 5, Volume 2. Anyone who sat down to watch Stranger Things Season 5, Volume 2 on Christmas Day probably has some questions about that poignant scene between Nancy (Natalia Dyer) and Johnathan (Charlie Heaton) while they were trapped in the Upside Down’s Hawkins lab.