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.
Where to watch
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Apple TV
see all options Availability data: JustWatch
- Seasons
- 4
- Episodes aired
- 30
- Latest aired
- S03E10
- Total runtime
- 1d 2h
Timeline when each season aired
- Season 1 May 2023 – June 2023 10 episodes
- Season 2 November 2024 – January 2025 10 episodes
- Season 3 July 2026 – September 2026 10 episodes
- Season 4 July 2027 1 episode
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S02E01 The Engineer
November 14 · 48min find the promo
Show synopsis
Juliette finds sanctuary in a silo long ago destroyed by war, thinking she's alone.
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S02E02 Order
November 21 · 42min find the promo
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In Silo 18, shock and unrest take hold in the wake of Juliette doing what no one's done before.
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S02E03 Solo
November 26 · 54min find the promo
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Bernard turns to Judge Meadows for help. Billings begins to wonder if he's being lied to. Juliette finally meets the man in the vault.
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S02E04 The Harmonium
December 5 · 54min find the promo
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Juliette sets out on a dangerous quest to retrieve a suit so she can return home and save her silo. Mechanical plans a meeting with Judge Meadows.
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S02E05 Descent
December 12 · 49min find the promo
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Sims finds himself with a new position. Juliette learns Solo isn't being honest. Bernard and Lukas make an important discovery.
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S02E06 Barricades
December 19 · 43min find the promo
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Bernard enacts a plan to root out Knox, Shirley, and Walker. Billings takes a stand. Solo saves Juliette's life and wants something in return.
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S02E07 The Dive
December 26 · 51min find the promo
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Lukas is assigned a mission. Mechanical sends a powerful message. Juliette embarks on a perilous descent—and confronts a new danger.
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S02E08 The Book of Quinn
January 2 · 47min find the promo
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Juliette discovers something's happened to Solo. Bernard makes an offer to Walker. Lukas meets with Salvador Quinn's descendants.
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S02E09 The Safeguard
January 9 · 59min find the promo
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Billings' faith is shaken. Lukas heads to the down deep. Knox identifies the traitor. Juliette uncovers the truth about Solo's past.
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S02E10 Into the Fire
January 16 · 59min find the promo
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The rebels make their move—and so does Juliette.