Stranger Things - Season: 4eps9

Eddie and Dustin distract the Demobats in the Upside Down using Eddie’s iconic "Master of Puppets" guitar solo.

Eleven uses a makeshift isolation tank in Nevada to psychically enter Max’s mind and fight Vecna from within. Major Deaths & Sacrifices Stranger Things - Season 4Eps9

Steve, Nancy, and Robin infiltrate the Upside Down Creel House to destroy Vecna’s physical body with Molotov cocktails and shotguns. Eddie and Dustin distract the Demobats in the

The episode famously featured Metallica's "Master of Puppets" and a mashup of "Running Up That Hill" with the show's theme. Vecna reveals he discovered the "shadow" particles in

In a heroic turn, Eddie refuses to run and stays behind to lure the bats away from Dustin. He dies in Dustin’s arms, finally proving to himself he isn't a coward.

Vecna reveals he discovered the "shadow" particles in the Upside Down and shaped them into the Mind Flayer to act as his tool.

Despite the team's efforts, Vecna technically wins the battle. Because Max died (even briefly), the fourth gate opened, causing a massive "earthquake" that tore through Hawkins.