The Byers Girl (On Pause until season 5)

Chapter Eight: The Battle of Starcourt

As Joyce, Murray and Hopper drive to Starcourt Mall to find the kids, Eleven screams in pain squeezing Y/n's arms that are holding her as the piece of the Mind Flayer in her leg starts to move. Jonathan grabs a knife from a nearby restaurant to cut open her wound with. Unable to take the pain of him trying to pull it out of her leg, Eleven yells in pain telling him to stop, she rips the piece out with her powers, and an arriving Hopper smashes it under his boot.
Y/n runs to her mom hugging her tightly.
"Are you okay?" Joyce asks her worried holding her face in her hands looking for injuries.
"I'm okay, everyone is alright" Y/n says smiling with tears in her eyes.
Y/n looks at Hopper and runs to him hugging him tightly.
"Hey kid" he says smiling hugging her back.
"Hi Hop" she says smiling looking up at him.

The kids who fought the Mind Flayer update the adults and the Starcourt group on recent events, and they agree they need to close the gate again to kill it. Murray shows the group Alexei's blueprints of the Russian base, but Erica sarcastically warns him of the dozens of armed guards down below.
Dustin recommends they use the ventilation ducts and offers to come with them to navigate, and instead offers to use Cerebro to help when Hopper refuses to take him back into the base. Dustin reconciles with Mike, Will and Lucas over their recent distance from each other, and the Starcourt group takes Hopper's stolen car to Cerebro. Joyce says goodbye to Y/n and Will. Hopper says goodbye to Eleven and Y/n, making the girls swear they will stay safe. He stops Mike as he leaves, telling him to be careful.

As the adults descend into the base, Nancy finds that her car has been tampered with, and the group sees Billy has tracked them down and is waiting for them across the parking lot in his car. They hurry back inside.

Guards are waiting for the adults as the elevator arrives, and Murray distracts them with his fluency in Russian, allowing Hopper to gun them down. The car stops on the way up the hill, forcing them to hike the rest of the way.

Mike attempts to call them, relaying their emergency of being trapped inside the mall. Jonathan notices the car model Eleven killed the Russians with, and realizes it may have the part they need to get Nancy's car working. Eleven attempts to flip it with her mind to no avail. The adults disguise themselves as Russians and Murray slides into the ducts, guided by Dustin and Erica, who have reached Cerebro.

The kids flip the car and Jonathan and Nancy search it while Eleven tries and fails to crush a can of New Coke. Will's neck flares up and Max sees the Mind Flayer walking on top of the mall's glass roof. It crashes into the mall just as Jonathan finds the car part.

The Russian enters the base as Hopper expresses anxiety over the kids' safety. Joyce reminisces with him over their recent adventure, and expresses doubt when he mentions her plan to move. She invites him to dinner with her at the place he was stood up at should they survive. As Dustin and Erica continue to guide Murray, Steve notices the lights at the mall going haywire. Dustin frantically calls the others, only for Mike's Supercom to be tossed aside by the Mind Flayer as the group hides from it. Steve leaves quickly thinking about Y/n who's in the mall. Dustin gives Steve and Robin his Supercom and the teens leave to go rescue the mall group. Max, Mike, and Eleven try to escape through a back entrance, but the Mind Flayer hears them and gives chase. Lucas saves them from being caught by distracting it with his Wrist Rocket, and Lucas, Nancy, Will, Y/n and Jonathan lure it out of the mall and away from the trio.

Murray arrives at his destination and distracts the Russians by remotely disarming the Key.
Joyce and Hopper arrive at the safe that holds the shutdown keys, but finds Alexei's code does not work. As Dustin listens to them argue over Planck's constant, the number needed to unlock the safe, he suddenly begins changing stations on Cerebro's controls.

As Jonathan tries to start the car and Billy drives towards them at a high speed, Y/n tries to reason with him.
"It's me your girl!" she yells desperately with tears in her eyes.
"Please remember!" she yells panicked.
Nancy starts shooting from behind the vehicle.
Y/n stands in front trying to calm him and begging him to listen.
Steve sees Billy driving fast about to hit Y/n and saves them by ramming his car into Billy's.
The Mind Flayer follows the group outside, and Steve and Robin flee with the rest.