Where we left off
The first season opened with the murder of Juliette's lover, George (Ferdinand Kingsley), who collected forbidden historical artifacts, which silo sheriff Holston Becker (David Oyelowo) investigated at Juliette's request. When he chose to go outside, he named Juliette as his successor, and she took on George's case as well as the murder of silo mayor Ruth Jahns (Geraldine James). Many twists ensued, including the existence of a secret group dedicated to remembering the past whose members were being systemically killed. Juliette also began to suspect that the desolate landscape seen through the silo's camera system was a lie and there was actually a lush green landscape outside.
In the season finale, Juliette made a deal with Holland: She would choose to go outside in exchange for the truth about what happened to George and the continued safety of her friends in Mechanical. The final twist: Juliette survived her outside excursion and realized that the dystopian hellscape was the reality, and the lush green Eden was the lie. And she learned that their silo was one of many, with a ruined city visible in the background.
The official S2 trailer picks up there but doesn't provide many additional details. We see Juliette in her protective suit walking across the desolate terrain toward the other silos, human skulls and bones crunching under her feet. When Juliette's oxygen runs out, she finds shelter and survives, and we later see her trying to enter a silo—whether it's her original home or another one is unclear. Meanwhile, Holland gives an impassioned speech to his silo residents, declaring her a hero for sacrificing herself. But rumors swirl that she is alive, and rebellion is clearly brewing, with Juliette becoming a symbol for the movement.
The second season of Silo debuts on Apple TV+ on November 15, 2024. Ferguson has said that there are plans for third and fourth seasons to wrap up the story, which will hopefully be filmed at the same time.