Lily arrives for her final confrontation with Forest and Katie.

Lily returns to work at Amaya and explains her suspicions to Jen and Anya. Forest is visited by Line, a powerful senator asking questions about the Devs project.

When her boyfriend Sergei vanishes after starting a new job at the secretive Devs division of tech company Amaya, software engineer Lily begins to suspect that his disappearance may not…

Taylor becomes personally invested in having Bull help a dancer, Jessica, bring a civil suit against a real estate mogul who assaulted her at a gentlemen’s club when the district…

When Taylor’s former protégé is killed while preventing a bio-weapon from falling into the wrong hands, Mac and the team must find the weapon so Desi can pull off the…

As Hopper braces to battle a monster, Dustin dissects Vecna’s motives — and decodes a message from beyond. El finds strength in a distant memory.

Psychic visions draw Eleven to a band of violent outcasts and an angry girl with a shadowy past.

Eleven makes plans to finish what she started while the survivors turn up the heat on the monstrous force that’s holding Will hostage.

Dr. Alexei reveals what the Russians have been building, and Eleven sees where Billy has been. Dustin and Erica stage a daring rescue.

An ailing Will opens up to Joyce — with disturbing results. While Hopper digs for the truth, Eleven unearths a surprising discovery.

Nancy and Jonathan swap conspiracy theories with a new ally as Eleven searches for someone from her past. “Bob the Brain” tackles a difficult problem.

A frantic Jonathan looks for Nancy in the darkness, but Steve’s looking for her, too. Hopper and Joyce uncover the truth about the lab’s experiments.

An increasingly concerned Nancy looks for Barb and finds out what Jonathan’s been up to. Joyce is convinced Will is trying to talk to her.