It's been three years since Mike and Eleven met in the woods. It's been two years since they had their first (awkward) kiss. It's been a year since they danced together at the Snow Ball. Now it's 1985, and Mike, Eleven, Dustin, Lucas, Will, and Max are teenagers. One night, when the boys are in Mike's basement, Eleven goes missing. The boys go out to look for her in the woods off of Murkwood, only to be told by their mom that she was taken... by a man with white hair.