Iris Abrams returns to Hawkins when her friend Eddie hasn't responded to her calls or letters. As she pieces the story of what happened to him she finds new friends who can embrace her powers, but is in danger of being captured by the cult she originally ran from. Can Iris bring Eddie back to life before time runs out?

Picking up after A Year In the Life, Rory is pregnant and trying to finish her memoir, but the ending is evading her. How can she write the ending when she doesn't know her own? Can she figure everything out before the baby comes?