Hopper, Joyce, and Bob (Joyce’s sweet, nerdy boyfriend from RadioShack) venture into the tunnels. They are attacked by living vines and a swarm of Demo-dogs (the baby Demogorgons, now dog-sized). Bob saves them by solving a computer puzzle to open a door. Just as they escape, a Demo-dog latches onto Bob’s neck and kills him brutally in front of Joyce. The Mind Flayer has one goal: spread and consume . It possesses Will Byers fully. Will’s "episodes" become seizures where he spits out black tentacles. Dr. Owens (the new, slightly more ethical lab director) tries to help, but it’s too late. The Mind Flayer now sees everything Will sees.
After a fight where Eleven uses her powers to throw Hopper across the room, she runs away. Using her powers, she locates her mother, , in a catatonic state, and her aunt. Through a sensory deprivation tank, she mind-dives into her mother’s memories and sees that she has a "sister"—another test subject from Hawkins Lab. Stranger Things -2017- Season 2 Web Series
The camera pulls back from the Snow Ball, out of the gym, into the snowy Hawkins night. We zoom into the school’s basement, then down into the earth... and into the Upside Down. Hopper, Joyce, and Bob (Joyce’s sweet, nerdy boyfriend
There, in the dark, icy wasteland, we see the —a colossal, 50-foot-tall spider-like shadow—towering over the ruins of the Hawkins Lab Gate. It stares directly at the camera (and thus, at the real world), letting out a low, rumbling growl. Just as they escape, a Demo-dog latches onto
Using Will as a spy, the Mind Flayer sends the Demo-dog army to attack Hawkins Lab. Hopper, Joyce, Mike, and the kids are trapped inside. A massive shootout occurs. Bob dies. The soldiers die. Just as the Demo-dogs break through the final doors, Eleven arrives.
But after Kali tries to make Eleven kill a man in cold blood, Eleven realizes this isn't her. She remembers Hopper, Mike, and her friends. She rejects Kali’s path, uses her powers to escape, and returns to Hawkins to save her real family. Back in Hawkins, things are getting worse. Dart has grown rapidly, molted, and escaped into the sewers. Dustin realizes with horror: Dart is a baby Demogorgon.