Ross and Matt Duffer mentioned to The Hollywood Reporter that the four episodes, listed below, are essential for understanding where the story goes in Season 5, which begins on November 26.
The four Stranger Things episodes are listed below:
Season 2, Episode 4, “Will the Wise”Season 2, Episode 6, “The Spy”Season 4, Episode 7, “The Massacre at Hawkins Lab”Season 4, Episode 9, “The Piggyback”
Matt Duffer told THR that Season 2 “is when we really began to develop the mythology and started to explore everything, and how this would be an ongoing series. That’s where we started to lay the groundwork for the mythology, and I think that's why it remains so relevant.”
Ross highlighted the Season 4 episode, The Massacre at Hawkins Lab, which “begins revealing some of the Upside Down mythology and starts providing some answers, and, of course, all the events with Henry (Bower) and Eleven (Millie Bobby Brown) continue to have an impact throughout Season 5.”
Earlier this month, the Duffers assured fans that Season 5 will finally address one of the most significant questions that has remained unanswered since Season 1's dramatic debut a decade ago.
Warning! Spoilers for Stranger Things follow: