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The series guide

Silo

2023 · Drama · Mystery · Science Fiction

Score pendingMovie of the NightAggregated from multiple sources.

Thousands of people live inside an underground silo, following rules intended to protect them from a dangerous outside world. Engineer Juliette Nichols begins asking questions about the community's history and the explanations its leaders provide. Adapted from Hugh Howey's novels, the series follows a society whose continued survival may depend on understanding what it has been told.

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Season 1 official trailer

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Creator
Graham Yost
Starring
Rebecca Ferguson, Common, Tim Robbins, Harriet Walter
Episode guide
4 listed seasons · 30 released episodes
IMDb
View title and credits ↗
A reason to be curious

Why it may suit you.

The enclosed setting turns a large speculative idea into practical questions about work, authority and access to information. Juliette's technical background gives her a specific way of approaching the mystery. Choose it if you enjoy uncovering how a fictional society operates and why its rules exist.

Dystopian mysteriesHugh Howey adaptationsHidden histories

An entire society inside one building

The silo is more than an unusual location for a mystery. It combines housing, employment, government and the infrastructure needed to stay alive. That makes an argument about a broken machine potentially inseparable from an argument about power. When residents cannot simply move elsewhere, the people controlling information also influence the limits of everyone's imaginable future.

A useful question to carry through the opening is who can check an official explanation. A rule might be sensible, mistaken or deliberately misleading, but most residents lack an independent way to distinguish those possibilities. The drama grows from that imbalance. Curiosity becomes consequential because asking for evidence can disrupt a system on which the questioner also depends.

Why Juliette's work matters

Rebecca Ferguson plays Juliette Nichols, whose engineering work gives the story a practical point of entry. She approaches problems through mechanisms, failures and things that can be tested. Read against the silo's official narratives, that professional habit creates an interesting tension: a convincing explanation still needs to survive contact with the machinery and the people who operate it.

The ensemble connects her investigation to different parts of the community. Tim Robbins plays Bernard Holland, Common plays Robert Sims and Harriet Walter plays Martha Walker. Their positions around administration, security and technical work give viewers several ways to think about the same society. Pay attention to what each character is responsible for protecting, as well as what they say.

Books, viewing order and avoiding spoilers

Graham Yost developed the television series from Hugh Howey's Silo novels. The books are an alternative route into this world, but reading them first is unnecessary. For a first visit, the show's opening episodes introduce its boundaries through the residents themselves. Starting midway would remove the gradual process of learning which assumptions the characters share and which they begin questioning.

Follow the episodes in their listed season order and treat later-season promotional descriptions carefully; even an official synopsis can disclose the outcome of an earlier mystery. This is a strong candidate for viewers who enjoy confined societies, institutional secrets and practical problem-solving within speculative fiction. The central attraction is discovering how a supposedly complete explanation of the world starts to develop cracks.

The essentials

Series facts.

Release year
2023
Series premiere
5 May 2023
Format
Scripted
Genres
Drama · Mystery · Science Fiction
Creator
Graham Yost
Typical episode
About 51 minutes
Original language
English
Series status
Running
Based on
Hugh Howey's Silo novels
Setting
An underground community in a dystopian future

Series format, language and status: TVmaze. Original dates may differ from a release in your country.

People behind the story

Cast & characters.

Credited performers across the series. Cast and roles can change between seasons.

  • Rebecca Fergusonas Juliette Nichols
  • Tim Robbinsas Bernard Holland
  • Commonas Robert Sims
  • Harriet Walteras Martha Walker
  • Chinaza Ucheas Paul Billings
  • Remmie Milneras Shirley Campbell
  • Shane McRaeas Deagan Knox
  • Avi Nashas Lukas Kyle
  • Billy Postlethwaiteas Hank Murphy
  • Alexandria Rileyas Camille Sims
  • Rick Gomezas Patrick Kennedy
  • Clare Perkinsas Carla McLain
See 10 more credited performers
  • Steve Zahnas Solo
  • Ashley Zukermanas Congressman Daniel Keene
  • Jessica Henwickas Helen Drew
  • Reed Birneyas Henry
  • Laura Innesas Senator Rosalind Thurman
  • Jessica Brown Findlayas Charlotte Keene
  • Matt Cravenas Dr. Victor Crnkovich
  • David Oyelowoas Sheriff Holston Becker / Holston Becker
  • Morven Christieas Anna Thurman
  • Rashida Jonesas Allison Becker

Cast data includes credits from TVmaze, under CC BY-SA 4.0, grouped and reformatted for this guide. Additional credits are documented in the editorial sources.

Plan your watch

Seasons & episodes.

4 listed seasons30 released episodes1 scheduled

Browse every listed season and episode. Dates refer to the original release; the catalogue in your selected country may differ.

Season 12023 · 10 listed episodesComplete

Premiere: 5 May 2023. Finale: 30 Jun 2023. 10 released regular episodes of 10 ordered.

Silo Season 1: original episode titles, first air dates and runtimes
No.EpisodeFirst releaseLength
01Freedom Day59 min
02Holston’s Pick47 min
03Machines62 min
04Truth45 min
05The Janitor’s Boy50 min
06The Relic50 min
07The Flamekeepers47 min
08Hanna43 min
09The Getaway43 min
10Outside44 min
Season 22024–2025 · 10 listed episodesComplete

Premiere: 15 Nov 2024. Finale: 17 Jan 2025. 10 released regular episodes of 10 ordered.

Silo Season 2: original episode titles, first air dates and runtimes
No.EpisodeFirst releaseLength
01The Engineer45 min
02Order41 min
03Solo54 min
04The Harmonium55 min
05Descent49 min
06Barricades43 min
07The Dive51 min
08The Book of Quinn48 min
09The Safeguard60 min
10Into the Fire59 min
Season 32026 · 10 listed episodesComplete

Premiere: 3 Jul 2026. Finale: 4 Sep 2026. 10 released regular episodes of 10 ordered.

Silo Season 3: original episode titles, first air dates and runtimes
No.EpisodeFirst releaseLength
01Who Are You?52 min
02It's All Good52 min
03A Dark Web49 min
04Whatever You Do, Don't Go Home48 min
05Memory53 min
06The Drive54 min
07Radio55 min
08Gray Goo56 min
09Farewell62 min
10Troy60 min
Season 42027 · 1 listed episodeUpcoming

Premiere: 9 Jul 2027. Scheduled finale: 9 Jul 2027. 0 released regular episodes of 10 ordered.

Silo Season 4: original episode titles, first air dates and runtimes
No.EpisodeFirst releaseLength
01TBAScheduledNot listed

Season, episode and cast data from TVmaze. Selected and reformatted under CC BY-SA 4.0. Download this series dataset. Unannounced dates and titles remain open.

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Sources behind this guide.

Our story introductions and viewing notes are written for WhoStreamsIt using the factual sources below. They offer spoiler-light context to help you choose your next watch.

Included using FlixPatrol: Apple TV worldwide TV chart · position 4 in that source. This is not a worldwide cross-platform ranking.

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