Series guide
- Science fiction
- Drama
- Dystopian
- Creators
- Graham Yost
- Stars
- Rebecca Ferguson · Rashida Jones · David Oyelowo
Images: Apple TV
Where to watch Silo
All three seasons — 30 episodes — stream on Apple TV+ in the US with any subscription, checked October 17, 2026.
Streaming options in the United States, updated Oct 17, 2026. More from tv.apple.com. Service logos are trademarks of their owners.
- Episodes aired
- 30 of 31
Seasons 4
Silo episodes 31
Season 1 · 10 episodes · 10 aired · May 5, 2023 to Jun 30, 2023
S1.E1 ·
Freedom Day
In a sealed underground silo where going outside means certain death, sheriff Holston Becker is still grieving his wife's fate years after she broke the one rule everyone lives by.
Directed by Morten Tyldum · Written by Graham Yost
S1.E2 ·
Holston's Pick
As Holston prepares to face the consequences of his own choice, he names an unlikely successor from the silo's deep mechanical levels: engineer Juliette Nichols.
Directed by Morten Tyldum · Written by Jessica Blaire & Cassie Pappas
S1.E3 ·
Machines
New sheriff Juliette settles into her strange role up top while still carrying the instincts of years spent fixing the silo's generator far below.
Directed by Morten Tyldum · Written by Ingrid Escajeda
S1.E4 ·
Truth
Juliette's search for answers about a death in Mechanical turns up loose threads that reach further into the silo's power structure than she expected.
Directed by David Semel · Written by Remi Aubuchon
S1.E5 ·
The Janitor's Boy
A look back at the years before Holston's choice shows how his wife Allison's own search for the truth about the silo set everything that follows in motion.
Directed by David Semel · Written by Graham Yost
S1.E6 ·
The Relic
Juliette tracks down an old, forbidden piece of technology that could tell her far more about the silo's past than anyone up top wants her to know.
Directed by Bert & Bertie · Written by Aric Avelino
S1.E7 ·
The Flamekeepers
A secretive group living off the official record offers Juliette help, but trusting them means stepping further outside everything she's been taught.
Directed by Bert & Bertie · Written by Jessica Blaire
S1.E8 ·
Hanna
An investigation into the silo's recent deaths puts Mayor Jahns and Deputy Marnes on a collision course with the IT department that quietly runs more than most people realize.
Directed by Adam Bernstein · Written by Jeffery Wang & Ingrid Escajeda
S1.E9 ·
The Getaway
With Judicial closing in, Juliette has to decide how far she's willing to run, and who she can still trust, to keep digging into what she's found.
Directed by Adam Bernstein · Written by Lekethia Dalcoe
S1.E10 ·
Outside
The silo's long-buried history comes to a head as Juliette is forced into the one fate everyone has been taught to fear most.
Directed by Adam Bernstein · Written by Fred Golan
Season 2 · 10 episodes · 10 aired · Nov 15, 2024 to Jan 17, 2025
S2.E1 ·
The Engineer
Juliette's choice at the end of season one has consequences no one inside or outside the silo saw coming, while her old crew in Mechanical is left to pick up the pieces.
Directed by Michael Dinner · Written by Graham Yost
S2.E2 ·
Order
Bernard moves quickly to lock down the silo and control the narrative about what really happened to its last sheriff.
Directed by Michael Dinner · Written by Fred Golan
S2.E3 ·
Solo
A flashback strand follows a silo survivor who has spent years alone with the facility's machines, learning things about the silos' true purpose that almost no one else still living knows.
Directed by Aric Avelino · Written by Cassie Pappas
S2.E4 ·
The Harmonium
A piece of old technology surfaces that hints at a wider network of silos and a history far stranger than anyone in Juliette's world has been told.
Directed by Aric Avelino · Written by Sal Calleros
S2.E5 ·
Descent
Juliette and her allies push further into restricted parts of the facility, uncovering how carefully the people running things have controlled what everyone else is allowed to know.
Directed by Amber Templemore · Written by Jenny DeArmitt-Stran
S2.E6 ·
Barricades
Tensions inside the silo boil over as different factions start taking matters into their own hands, forcing people to pick sides.
Directed by Michael Dinner · Written by Jeffery Wang
S2.E7 ·
The Dive
A dangerous, unauthorized expedition into flooded lower levels puts Juliette and her crew at serious risk in search of answers.
Directed by Michael Dinner · Written by Katherine DiSavino
S2.E8 ·
The Book of Quinn
A record left behind by one of the silo's founders reframes what Juliette, and the audience, understand about why the silos were built in the first place.
Directed by Amber Templemore · Written by Remi Aubuchon
S2.E9 ·
The Safeguard
With the full scope of the silo's original design coming into view, the people in charge move to protect their control over it by any means necessary.
Directed by Amber Templemore · Written by Jessica Blaire
S2.E10 ·
Into the Fire
Season two builds to a confrontation between Juliette's growing understanding of the silos' true history and the people determined to keep it buried.
Directed by Amber Templemore · Written by Aric Avelino
Season 3 · 10 episodes · 10 aired · Jul 3, 2026 to Sep 4, 2026
S3.E1 ·
Who Are You?
Season three opens with the fallout from Juliette's discoveries spreading beyond her own silo, raising the stakes for everyone who knows the truth.
Directed by Michael Dinner · Written by Graham Yost
S3.E2 ·
It's All Good
As word of what's really going on starts to spread, different characters have to decide how much they're willing to risk to act on it.
Directed by Michael Dinner · Written by Shelley Birse
S3.E3 ·
A Dark Web
A wider picture of the network connecting multiple silos starts to come together, complicating Juliette's plans.
Directed by Michael Dinner · Written by Aric Avelino
S3.E4 ·
Whatever You Do, Don't Go Home
Old loyalties are tested as the consequences of season two's revelations finally reach the people who have been trying to keep them contained.
Directed by Aric Avelino · Written by Jessica Blaire
S3.E5 ·
Memory
A closer look at the past fills in more of how the silo system came to be, and what it cost the people who built it.
Directed by Aric Avelino · Written by Katherine DiSavino
S3.E6 ·
The Drive
Juliette and her allies make a risky push toward a plan that could change the fate of more than just her own silo.
Directed by Alrick Riley · Written by Sal Calleros
S3.E7 ·
Radio
A fragile new form of contact between silos raises hope and danger in equal measure.
Directed by Aric Avelino · Written by Remi Aubuchon
S3.E8 ·
Gray Goo
The threat hanging over the whole silo system becomes clearer, forcing characters to reckon with just how much is at stake.
Directed by Amber Templemore · Written by Jenny DeArmitt-Stran
S3.E9 ·
Farewell
As the season heads toward its climax, characters across the silo system have to make choices they can't take back.
Directed by Amber Templemore · Written by Jeffery Wang
S3.E10 ·
Troy
The season three finale brings the fight over the silos' future, and the truth behind their existence, to a head.
Directed by Amber Templemore · Written by Fred Golan
Season 4 · 1 episodes · 0 aired · Jul 9, 2027 to Jul 9, 2027
S4.E1 · · Up next · Projected date
Title not announced
Written by Graham Yost
Videos 2
One story, three seasons in, with the ending already confirmed
Silo is not an anthology and it is not open-ended: Apple confirmed in December 2024 that season 4 will be its last, the season that completes the story Hugh Howey told across three self-published novels, Wool, Shift and Dust. That matters for how to approach it — this is a show built around a mystery with an actual answer, not one designed to run indefinitely. The premise: ten thousand people live in a sealed underground silo, told that the air outside is poison and that going out means death. Rebecca Ferguson’s Juliette Nichols is the engineer who starts asking two questions no one else will: why everyone believes that, and who actually built the silo in the first place.
Developed by Graham Yost, the show pairs Ferguson with Tim Robbins, Rashida Jones, David Oyelowo, Common and Harriet Walter across a cast that keeps expanding as the story’s scope does — season 1 is mostly one silo’s secrets, and by season 3 the show is reckoning with just how many silos there are and what they were really built for. Thirty episodes have aired across three seasons, ten a season, and Apple’s own season 3/4 renewal announcement is the primary source for the final-season confirmation.
All thirty episodes have spoiler-free premises in the season rails below — plot goes nowhere near this page. Apple TV+ is the only place to watch it, no date has been set for season 4, and the production record is where a premiere date would be confirmed first. If a slower, character-driven survival story is more your speed than Silo’s mystery hook, our The Last of Us guide is the other prestige adaptation already on the site; everything else by release date is in our watch guides.
Silo cast 12
Rebecca FergusonJuliette Nichols
Rashida JonesAllison Becker
David OyelowoHolston Becker
CommonRobert Sims
Tim RobbinsBernard Holland
Harriet WalterMartha Walker
Avi NashLukas Kyle
Rick GomezPatrick Kennedy- Chinaza UchePaul Billings
- Shane McRaeDeagan Knox
- Remmie MilnerShirley Campbell
- Billy PostlethwaiteHank Murphy
- Creator
- Graham Yost
- Director
- Morten Tyldum
- Writer
- Graham Yost
Photos via Wikimedia Commons. Rebecca Ferguson: Bryan Berlin, CC BY-SA 4.0; Rashida Jones: MiamiFilmFestival, CC BY-SA 2.0; David Oyelowo: Tyler Boye, CC BY-SA 4.0; Common: Steven Pisano – Feast of Music from New York City, United States, CC BY 2.0; Tim Robbins: gdcgraphics, CC BY-SA 2.0; Harriet Walter: Raph_PH, CC BY 2.0; Avi Nash: Gage Skidmore, CC BY-SA 3.0; Rick Gomez: Bryan Berlin, CC BY-SA 4.0.
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Frequently Asked Questions
Where can I watch Silo?
Apple TV+ in the US, with any subscription. Checked October 17, 2026.
How many episodes of Silo are there?
30 across three seasons: 10 in each. Season 3 ended September 4, 2026.
Is there a Silo season 4?
Yes. Apple confirmed season 4 in December 2024 as the show’s final season, the one that completes Hugh Howey’s three-book story. No release date has been announced.
Is Silo based on a book?
Yes, Hugh Howey’s self-published Silo trilogy: Wool, Shift and Dust.
Who stars in Silo?
Rebecca Ferguson leads as Juliette Nichols, with Tim Robbins, Rashida Jones, David Oyelowo and Common.
