Silo is complicated. So complicated that even its showrunner, Graham Yost, has messed up details. An actor once realized a conversation they were about to film should’ve already happened. The Japanese localization team caught a subtitle that didn’t match what was on screen. Yost’s reaction both times? “Oh shit, you’re right.”
Season 3 drops July 3 on Apple TV+, and it expands the story significantly. The show follows 10,000 people living in a massive underground bunker — a vertical city divided by class, from the mines at the bottom to the government at the top. One giant spiral staircase connects it all.
First two seasons made it clear these residents aren’t alone. There are other silos, each with their own communities. Season 3 adds a new layer: showing how the world ended up this way in the first place. The premiere jumps between the bleak future and our present day, when the decisions that trapped everyone underground were being made.
Juliette (Rebecca Ferguson) has just become the first person to travel between silos and is now dealing with memory loss. Multiple timelines. Non-linear shooting schedules. The cast has different coping strategies.
Alexandria Riley says they started each day with “story time” from the director to track where they were. Common rehearsed separately with his co-star just to keep things straight. Jessica Henwick joined as a present-day reporter and deliberately didn’t read anyone else’s scenes — she wants to watch as a fan.
One thing that doesn’t help: reading the books. The adaptation has diverged so much that Ashley Zukerman found “the books are so different” that keeping both straight was impossible.
Four seasons was always the plan. The final two were filmed back to back. Yost’s team doesn’t have to keep all those plotlines straight anymore. And Ferguson? She’s thrilled to be done running up and down those stairs. “I fucking hated it.”
