Chapter Seven, which focuses entirely on Eleven and Kali in Chicago, is widely cited by critics and fans as the season's weakest point, with some describing it as a "trainwreck" that disrupted the main story's momentum.
The season concludes with Eleven using her full strength to close the interdimensional rift while the group fights off Demo-dogs in the tunnels, ending on a bittersweet note at the Hawkins Middle School Snow Ball. Stranger Things (S02)
Will Byers continues to be haunted by his time in the Upside Down, experiencing "episodes" where he sees a gargantuan, spider-like entity known as the Mind Flayer . This entity eventually enters Will’s body, using him as a spy to spread a mysterious "plague" of tunnels and vines beneath Hawkins. Chapter Seven, which focuses entirely on Eleven and