UPSIDE DOWN REWATCH: STRANGER THINGS SEASON3 EP 3&4

UPSIDE DOWN REWATCH: STRANGER THINGS SEASON3 EP 3&4

In Stranger Things Season 3, Episode 3, "The Case of the Missing Lifeguard," the Hawkins crew begins to unravel the sinister forces at play during the summer of 1985.

Max and Eleven investigate Billy’s strange behavior after Eleven’s psychic vision reveals he’s connected to the missing lifeguard, Heather Holloway.

They break into the pool’s chemical storage, finding bleach and ammonia, hinting at a chemical conspiracy tied to the Upside Down.

Meanwhile, Dustin, Steve, and Robin, joined by Lucas’s sharp-witted sister Erica, decode a Russian transmission intercepted at Starcourt Mall, uncovering a secret delivery operation.

Joyce and Hopper track magnetic anomalies to abandoned properties, suspecting Russian involvement, while Nancy and Jonathan face skepticism at the Hawkins Post over reports of diseased rats.

In Episode 4, "The Sauna Test," the threads converge as Max and Eleven trap Billy in a sauna to test if the Mind Flayer possesses him, confirming his infection when he exhibits superhuman strength and rage.

Dustin’s group discovers a secret Russian lab beneath the mall, where they’re trapped in an elevator with glowing green vials, revealing the Soviets’ attempt to reopen the Upside Down portal.

Nancy and Jonathan connect Mrs. Driscoll’s erratic behavior to Billy’s, realizing the Mind Flayer is building a hive mind army.

Joyce and Hopper infiltrate a Russian base but are ambushed, escalating the stakes as the Mind Flayer’s influence grows.