Hawkins is under quarantine after the Upside Down events. Our heroes hide from the government, still plotting a capture, when an unexpected event destabilizes the team. Steve and Robin take over the new radio station, buzzing with odd mysteries, as a new face shows up in town.

After a vicious attack at the Wheeler home, Mike and Nancy confront the cost of secrecy, while El and Hopper embark on a rescue mission.

Will gains unique insight into Vecna's next move, giving the crew an opportunity to set a trap. Holly explores her new surroundings.

The military tightens its grip on the town. Mike, Lucas and Robin orchestrate a daring escape. El comes face-to-face with the enemy.

The gang hatches an electrifying plan to reconnect Will to the hive mind. Tensions flare during a search of the Upside Down's Hawkins Lab.

As Holly and Max fight to escape Vecna's mind, El must find a way into Will's. Joyce wrestles with guilt. Jonathan and Nancy face a turning point.

On the anniversary of Will's disappearance, the party reunites to prepare for a battle with world-altering implications.

The final battle is looming - and with it, a darkness more powerful and more deadly than anything they've faced before. To end this nightmare, they'll need everyone - the full party - standing together, one last time.