Silo
Gray Goo
TV Flash files “Gray Goo” as hour 28 of 30 in the TV Flash guide — Silo (2023–) on Apple TV+, season 3, episode 8, aired 2026-08-21.
From the desk
How this hour is filed
This leaf is S03E08: listed hour 28 of 30 in the Silo guide, hour 8 of 10 in season 3. It aired 2026-08-21. The listed hour before it is “Radio” (S03E07). Next is “Farewell” (S03E09).
Viewer FAQ
Where does Gray Goo sit in the Silo guide?
S03E08 is listed hour 28 of 30 — hour 8 of 10 in season 3, season 3 episode 8.
When did Silo S03E08 air?
Gray Goo aired 2026-08-21.
Where should I start?
Season one, inside the silo. Rules, lies, and terror of the sky are the worldbuilding; skipping ahead wastes how rumor becomes government.
In the series
Why this series still plays
Rebecca Ferguson in a buried civilization that runs on rules, lies, and terror of the sky. Apple's grounded sci-fi companion to Severance-scale craft: industrial design as plot, rumor as government, the outside as heresy. Watch for how cleanly a closed system becomes serialized paranoia without needing a monster of the week.
The work is a closed system. Graham Yost's Apple TV+ series, 2023 onward, puts Rebecca Ferguson as Juliette Nichols in a giant silo where leaving means death — a buried civilization that runs on rules, lies, and terror of the sky, with Common and Tim Robbins among the system's keepers. An engineer uncovers forbidden truths. Grounded sci-fi companion to *Severance*-scale craft: industrial design as plot, rumor as government, the outside as heresy. Thirty episodes, three seasons. A closed system becomes serialized…
Filed against
- Rebecca Ferguson as Juliette Nichols
Rebecca Ferguson plays Juliette Nichols on Silo, Apple’s 2020s buried civilization that runs on rules, lies, and terror of the sky — grounded sci-fi companion to other design-as-plot hours, industrial architecture as government, rumor as…
- Common as Robert Sims
Common plays Robert Sims on Silo — Rebecca Ferguson in a buried civilization that runs on rules, lies, and terror of the sky. Apple's grounded sci-fi companion to industrial-design-as-plot craft: rumor as government, the outside as…
- Tim Robbins as Bernard Holland
Tim Robbins governed Silo as Bernard Holland — a buried civilization that runs on rules, lies, and terror of the sky, industrial design as plot, rumor as government, the outside as heresy. Apple's grounded sci-fi. TV Flash files him as…