Months after Starcourt, the friends are scattered: Eleven struggles in California while the Hawkins crew embraces the Hellfire Club - until a chilling new mystery suggests the town's supernatural troubles have returned.

After a tragedy rattles Hawkins, the kids scramble to clear a friend and chase clues behind a rising supernatural threat. In California, Eleven struggles to adapt, and Joyce receives a message that sparks a new mission.

In the wake of tragedy, Hawkins turns on Eddie as the kids scramble for the truth; Eleven's school troubles escalate, and Joyce and Murray chase a cryptic message that could unravel a bigger mystery.

Max becomes the next target of Hawkins' emerging threat as her friends race to protect her. Nancy and Robin chase a decades-old case for answers, while Hopper plots a risky escape from a Russian prison.

Eleven undergoes a secretive program to unlock her abilities while Nancy Wheeler and Robin Buckley pursue a new lead in Hawkins. Across the globe, Joyce Byers and Murray Bauman push forward with a risky rescue mission.

With time running out, Nancy and the Hawkins crew chase new clues in the Upside Down while Eleven confronts buried memories at Hawkins Lab. Across the world, Joyce and Murray follow a dangerous lead to save a friend.

Nancy reels from unsettling visions as the Hawkins crew gathers supplies for a desperate showdown. At a Nevada lab, Eleven faces Papa's crucial test while outside forces close in.

As battles rage across Hawkins and beyond, Eleven and her friends risk everything in a desperate plan to stop a deadly evil.