What Is the Upside Down? - How Did Will Byers Get Into the Upside Down?

It's hard to keep up with Stranger Things, so here's a quick explainer on the Upside Down and how Will Byers got into the alternate dimension.

Stranger Things - November 6, 1983. The day Will Byers disappeared and the world turned upside down. #StrangerThingsDay returns tomorrow 🙃

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