: The Demogorgon corners the kids in a classroom. Eleven pins it to a wall, says "Goodbye, Mike," and uses the last of her energy to disintegrate the monster. Both she and the creature vanish in a cloud of particles. The Epilogue: One Month Later
: Nancy and Steve are still dating, though they remain friendly with Jonathan. The boys finish a D&D campaign, celebrating their victory over the "Thessalhydra". [S1E8] Chapter Eight: The Upside Down
: Chief Hopper and Joyce Byers are captured at Hawkins National Laboratory. To save Will, Hopper makes a deal with Dr. Brenner: he reveals Eleven's location (the middle school) in exchange for safe passage into the Upside Down and the lab's silence regarding their past activities. : The Demogorgon corners the kids in a classroom
: In the Upside Down, Joyce and Hopper find a "nest" in the library. They find Will unconscious with a fleshy tendril down his throat; Hopper performs CPR—flashing back to his daughter Sara's death—and successfully revives him. The Epilogue: One Month Later : Nancy and
The episode ends on Christmas Eve, establishing several "loose ends" for the following seasons:
: Jonathan and Nancy prepare to hunt the Demogorgon at home. Steve Harrington arrives to apologize for his behavior and is thrust into the fight. Together, they trap the monster in a bear trap and set it on fire, though it retreats back to its own dimension.
: During dinner, Will excuses himself to the bathroom where he coughs up a slug-like creature and sees a brief, terrifying flash of the Upside Down, indicating he is still connected to the dimension.