A story following Arielle Sinclair, Lucas and Erica's older sister who is navigating life in Hawkins and all the chaos that comes with it. With the disappearance of Will Byers and the other unexplainable events that take place in Hawkins, Arielle finds herself pulled into the world of the supernatural. Her unexpected friendship with the older teens, especially Steve Harrington, leads her into adventures she never imagined, and maybe feelings she didn't expect either.