Warning! This post contains spoilers for Stranger Things season 4, volume 2.
Stranger Things season 4 further explored the Russian storyline leftover from season 3, leading to questions of how the Russians got so many creatures from the Upside Down and just how many Demogorgons they had. Volume 2 of season 4 brought every storyline established in volume 1 to a head, including Hopper, Joyce, and Murray's antics in Russia. This led to many revelations about the nature of Kamchatka, the Russian facility, its connections to the Upside Down, and the story as a whole.
Out of all the storylines established in the first volume of Stranger Things season 4, the Russian storyline surrounding Hopper was the hardest to imagine tying into the events in America and the Stranger Things season 4 ending on a strong note. While Jonathan, Will, Mike, and Argyle were sent on a fool's errand of sorts in volume 1, that errand still featured them attempting to find Eleven. With the Russian storyline though, it was hard to see how it would connect to the larger events going on in Hawkins and tie to the main villain, Vecna.
Related: Everyone Who Dies In Stranger Things 4 Volume 2 (Including The Finale)
However, the Stranger Things season 4 finale managed to do this in an incredibly satisfying way, with Hopper's rescue and the subsequent battle with the many creatures of the Upside Down featuring highly-anticipated romantic moments, Stranger Things' expectedly great character work, nail-biting tension, and blockbuster-worthy action. However, most importantly, all of this was done in a way that connected the storyline directly to the events of Hawkins and California, making the finale incredibly satisfying, and the wait for Stranger Things season 5
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