Trailer
- On his way home from a friend's house, young Will sees something terrifying. Nearby, a sinister secret lurks in the depths of a government lab.
- Lucas, Mike and Dustin try to talk to the girl they found in the woods. Hopper questions an anxious Joyce about an unsettling phone call.
- An increasingly concerned Nancy looks for Barb and finds out what Jonathan's been up to. Joyce is convinced Will is trying to talk to her.
- Refusing to believe Will is dead, Joyce tries to connect with her son. The boys give Eleven a makeover. Nancy and Jonathan form an unlikely alliance.
- Hopper breaks into the lab while Nancy and Jonathan confront the force that took Will. The boys ask Mr.Clarke how to travel to another dimension.
- A frantic Jonathan looks for Nancy in the darkness, but Steve's looking for her, too. Hopper and Joyce uncover the truth about the lab's experiments.
- Eleven struggles to reach Will, while Lucas warns that "the bad men are coming." Nancy and Jonathan show the police what Jonathan caught on camera.
- Dr.Brenner holds Hopper and Joyce for questioning while the boys wait with Eleven in the gym. Back at Will's Nacy and Jonathan prepare for battle.
