We’re approaching the season finale of Stranger Things Season 4, and we’re hoping to finally get a full explanation of what the Upside Down is and how it works. How is it connected to Hawkins? How is it connected to One? Why is it so powerful? And what are the various levels of the Upside Down and how do they all relate to one another?

That’s the subject of our latest Stranger Things video, which digs into the Upside Down and reveals just how it works and how it came into being. And we do it all with ... an onion? (Layers, baby. Layers. Trust us; it’ll make sense when you watch it.)

We also give our theory as to the origin of One and Eleven’s powers, and how things will come to a head in Volume 2 of Stranger Things Season 4. Watch it all below:

If you liked that video exploring the true nature of the Upside Down from Stranger Things, check out more of our videos below, including our recap the first three seasons of Stranger Things ahead of Season 4, our breakdown of the latest trailer for Stranger Things Season 4, our look at how time travel works on Stranger Things. Plus, there’s tons more videos over at ScreenCrush’s YouTube channel. Be sure to subscribe to catch all our future episodes. The new season of Stranger Things premiered on Netflix on May 27; the two-part season will conclude on July 1.

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