With Netflix's Stranger Things now over and done, let's take a look back at the Upside Down's most terrifying monsters. Here they are, ranked.

"One Last Adventure" reveals the behind-the-scenes debate about whether to include demogorgons in the Abyss battle.

Netflix's 'One Last Adventure: The Making of Stranger Things 5' documentary left fans reeling over the writers' Demogorgon debate ahead of finale.