In a ruined and toxic future, thousands live in a giant silo deep underground. After its sheriff breaks a cardinal rule and residents die mysteriously, engineer Juliette starts to uncover shocking secrets and the truth about the silo.
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Rebecca Ferguson
Juliette Nichols
Common
Robert Sims
Harriet Walter
Martha Walker
Chinaza Uche
Paul Billings
Avi Nash
Lukas Kyle
Rick Gomez
Patrick Kennedy
Tim Robbins
Bernard Holland
All 20 episodes plotted by IMDb rating
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10 episodes • 2023Avg: 8.0Golden Era
| # | Episode | Air Date | Rating |
|---|---|---|---|
| 1 | Freedom Day | May 4, 2023 | 8.2 |
| 2 | Holston's Pick | May 4, 2023 | 8.0 |
| 3 | Machines | May 11, 2023 | 8.3 |
| 4 | Truth | May 18, 2023 | 7.3 |
| 5 | The Janitor's Boy | May 25, 2023 | 7.3 |
| 6 | The Relic | Jun 1, 2023 | 7.5 |
| 7 | The Flamekeepers | Jun 8, 2023 | 8.1 |
| 8 | Hanna | Jun 15, 2023 | 8.3 |
| 9 | The Getaway | Jun 22, 2023 | 8.4 |
| 10 | Outside | Jun 29, 2023 | 9.0 |
10 episodes • 2024Avg: 7.5
| # | Episode | Air Date | Rating |
|---|---|---|---|
| 1 | The Engineer | Nov 14, 2024 | 7.5 |
| 2 | Order | Nov 21, 2024 | 7.2 |
| 3 | Solo | Nov 26, 2024 | 7.5 |
| 4 | The Harmonium | Dec 5, 2024 | 7.5 |
| 5 | Descent | Dec 12, 2024 | 7.1 |
| 6 | Barricades | Dec 19, 2024 | 7.1 |
| 7 | The Dive | Dec 26, 2024 | 7.5 |
| 8 | The Book of Quinn | Jan 2, 2025 | 6.9 |
| 9 | The Safeguard | Jan 9, 2025 | 8.5 |
| 10 | Into the Fire | Jan 16, 2025 | 8.7 |
10 episodes • 2026
| # | Episode | Air Date | Rating |
|---|---|---|---|
| 1 | Episode 1 | Jul 2, 2026 | 0.0 |
| 2 | Episode 2 | Jul 9, 2026 | 0.0 |
| 3 | Episode 3 | Jul 16, 2026 | 0.0 |
| 4 | Episode 4 | Jul 23, 2026 | 0.0 |
| 5 | Episode 5 | Jul 30, 2026 | 0.0 |
| 6 | Episode 6 | Aug 6, 2026 | 0.0 |
| 7 | Episode 7 | Aug 13, 2026 | 0.0 |
| 8 | Episode 8 | Aug 20, 2026 | 0.0 |
| 9 | Episode 9 | Aug 27, 2026 | 0.0 |
| 10 | Episode 10 | Sep 3, 2026 | 0.0 |
