The gang and the older members of the group were hanging and playing at the Hawkins arcade for a break day, while Mike, Lucas, Dustin, Will, Max and El were playing on the game Joyce noticed Dustin's walkie buzzing before calling him over, Dustin walks over and upon hearing the mysterious caller he gets excited and continues ranting to the listener.

Overtime the others in the group look over and start to get curious who this person Dustin was talking to, El walks over and taps his shoulder and quietly asks who he was talking to.

Dustin: Uh.. my older brother?

Steve: BROTHER?!

Mike: Dude I thought you were an only child with how you act.

Joyce: I guess that's a surprise..?