In Stranger Things Season 3 Episode 4, the gang tested Billy for signs of the Mind Flayer, while Dustin, Robin, and Steve tried to find a way into the secret part of the mall.
In the previous episode of Netflix’s Stranger Things, Eleven and Max suspected something was wrong with Billy, while Robin realized the Russian message came from the Starcourt mall.
After observing Billy, they planned to trap him in the sauna and draw the Mind Flayer out with heat.
What did you think of this episode of Stranger Things?