Here's a breakdown of all the biggest reveals from the original Hugh Howey Silo books that unfold after the events of the Silo show's season 1 ending.

Silo Spoilers: What Happens In The Books & Biggest Reveals

Summary

  • Silo season 1 sets up the dystopian drama by introducing core concepts and themes from the original books, staying true to Hugh Howey's Wool.
  • Juliette's journey in season 1 involves encountering another neighboring Silo, starting a rebellion, and ultimately becoming the new Mayor of Silo-18.
  • The purpose of the Silos is revealed to be saving humanity from nuclear blasts, and Silo 1 monitors and plans for the future of all the Silos. The truth behind the Silos and their creators is uncovered in the final book.

Apple TV+'s Silo series explained relatively little about its vast and complex dystopian drama, although once broken down and examined alongside the original books it's possible to fill in a few gaps ahead of the upcoming second season. Silo season 1 sets the stage for its dystopian drama by introducing the core concepts and themes in Hugh Howey's original Silo novels. While it takes a few creative liberties and even introduces some original concepts in its storyline, the Apple TV+ series stays true to most elements from Hugh Howey's Wool, the first book in the Silo trilogy.

Juliette nearly meets the same fate as Allison and Holston in Silo season 1's ending when Bernard makes her step out. Fortunately for her, Martha protects her by asking the Supply team to insulate her suit with good-quality heat tape. As Juliette stares into the vast expanse of the outside world's wasteland, Silo season 1's credits start rolling, leaving audiences curious about what could happen next. While the ambiguity is partly what makes the show so gripping, the Silo series explained and compared to the original books shows just how complex it actually is, and answers several questions.

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Juliette Enters A Neighboring Silo & Finds Another Human Survivor

There's Life Outside Of Silo18 In Hugh Howey's Story

Rebecca Ferguson as Juliette Nichols in Silo

After leaving Silo-18 in Hugh Howey's Wool, Juliette comes across another neighboring Silo. This Silo is not as heavily populated as Silo18 because its citizens dissolved their population through rebellion and conflict. However, Juliette still finds one survivor: a man named Solo, who lives in the Silo with a bunch of children. Using her experience working at Silo-18's Mechanical, she fixes a pump to dry out the lower levels of the new Silo and thinks of digging laterally to make her way back to Silo-18.

Juliette's Failed Cleaning Starts A Rebellion In Silo-18

Anarchy Awaits In Silo On AppleTV+

While Juliette finds a way to communicate with Lukas from her new Silo home, a rebellion breaks loose in Silo-18 after Juliette's cleaning incident. The citizens start realizing that previous cleaners were murdered by the Silo's authorities, who were using faulty tape on their suits. Enraged by this revelation, they plot an attack on IT. Unfortunately, Mechanical loses its first battle against the IT, but to continue their protest, they create steel barricades to restrict IT from entering their Silo region.

Bernard Trains Lukas To Be His Shadow In Silo-18

Lukas Has An Interest Arc Ahead In Silo

Avi Nash as Lukas and Rebecca Ferguson as Juliette in Apple TV+'s Silo

Bernard trains Lukas to be his new shadow but does not realize that Lukas is secretly communicating with Juliette. As Lukas trains to become the next IT head, he learns there are 50 silos. He even questions Bernard when he realizes that he could be responsible for killing Mayor Ruth. Considering how Bernard sends Lukas to the Mines towards the ending moments of Apple TV+'s Silo season 1, the show may drift away from these plot developments in Lukas' arc. However, since Bernard eventually decides to send Lukas to clean in Wool, Lukas' storyline in the show could have the conclusion it reaches in Hugh Howey's original Silo books.

An image of Rebecca Ferguson looking down a tunnel in Silo
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Bernard Dies During A Silo-18 Incident

Tim Robbins May Not Have Long Left In Silo

Bernard (Tim Robbins) looking in fear at the screen in his ceremonial outfit in Silo

Since Juliette stays connected with Silo-18's events, she learns about Bernard's plans to send Lukas out. She builds a new suit and heads to Silo-18 to rescue him. After assuring Solo and the children that she will return, Juliette goes to Silo-18 and tries saving Lukas by wrapping him in a heat blanket. To her surprise, the man she tries to save is Bernard, who dies by suicide after jumping into the airlock chambers' cleansing fires. It turns out that before Juliette had made her way to Silo-18, Billings had already started a rebellion against Bernard, leaving the IT head in a helpless situation.

Juliette Gets Appointed As Silo-18's Mayor

Rebecca Furguson's Silo Character Has Politics In Her Future

Rebecca Ferguson as Juliette Nichols in Silo.

Following Bernard's death, the people of Silo-18 jointly agree to appoint Juliette as their new Mayor. Juliette, too, returns the favor by promising them she will lead with honesty. With this, the first book, Wool, in Hugh Howey's Silo trilogy ends and a new arc begins with the second book, Shift, in which the author introduces a whole new roster of characters.

The Purpose Of The Silos Was To Save Humanity From Nuclear Blasts

Nuclear Armageddon Created Silo's Dystopia

Hugh Howey's second book, Shift, in the Silo series, begins with a flashback from 2049 that reveals how a Congressman named Donald Keene had unknowingly built the Silos as a part of a project called CAD-FAC (Containment and Disposal Facility). Although Senator Paul Thurman initially told him that the CAD-FAC was meant for storing the world's nuclear waste in Fulton County, Georgia, the truth turns out to be far darker. A few years later in 2052, when a nuclear blast destroys Atlanta during the opening ceremony of the CAD-FAC, and the attendees of the ceremony seek refuge in the CAD-FAC, Thurman finally tells Keene that the nuclear blasts were pre-planned.

Much later in Hugh Howey's second Silo novel, Thurman and other leaders who pioneered the Silos justify their actions by revealing that nanotechnology use had become prevalent in the medical industry. However, terrorists were hacking into nano-machines and using them to spread global terrorism. Since the nanobots had already spread throughout the world and were putting everyone's health at risk, the leaders had no choice but to reset the world's population through nuclear explosions that would wipe out the nano-tech and allow humans to resettle on the planet after 500 years.

George Wilkins, Juliette Nichols, & Allison as Silo's Flamekeepers
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People From Silo 1 Monitor Other Silos

The First Silo Has A Sinister Purpose

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Silo 1 accommodates the leading figures of all the Silos who work in shifts. While one monitors the other Silos for six months, the others remain in cryogenic sleep for decades. When Juliette survives her cleaning from Silo-18 in the year 2345, Silo 1's authorities set out to wake Thurman up to report the chaos that could ensue in the near future. However, they accidentally awaken Donald Keene, who learns that in 2550, only one Silo's citizens will be allowed to settle on the planet based on several variables determined through an algorithm.

Juliette Uncovers The Truth Behind The Silos & Its Creators

The Silo Books Provide Many Answers

David Oyelowo as Sheriff Holston talking to Rebecca Ferguson's Juliette in Silo

In the final Hugh Howey book, Dust, Juliette discovers the truth about the world of Silo and its creators and threatens Donald Keene that she and Silo 18's citizens will come for him. In an attempt to save all Silos from their planned extermination, Keene and his sister, Charlotte, who he illegally awakens, try to understand how survivors can sustain themselves in the outside world. Charlotte even uses drones to explore the wasteland of the outside world.

Silo-18 Gets Exterminated, Killing Several Citizens

The Future Is Bleak For The Residents Of Silo-18

Juliette plans to dig laterally from Silo-18 to Silo-17, while Solo and other survivors of Silo-17 wait for her. Unfortunately, Thurman wakes up during this movement and releases toxic gases into Silo-18. As a result, only 200 citizens from Silo-18 make it out alive, while pivotal figures like Lukas die during the process. After getting brutally beaten and imprisoned for his conscientious objection to Silo's regulations, Keene takes it upon himself to destroy Silo-1 and encourages Charlotte to leave with a security officer named Darcy. Darcy, too, eventually puts his own life on the line to save Charlotte, leaving her as the only Silo-1 survivor.

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Juliette & Other Survivors Go To The "Seed"

The Bleak World Of Silo Includes A Glimmer Of Hope

Rebecca Ferguson as Juliette Furnace looking up in Silo

In the meantime, Juliette finds a facility map that shows how the Silos have an underground tunneling machine that can lead them to a safe zone called the "Seed." To their dismay, their Silo-17 machine does not have enough fuel to take them to the "Seed," so they walk to the location instead. When they finally emerge from a screen of dust, they realize that their Silos were surrounded by artificial toxic dust that only sold them the idea of the outside world's toxicity. It turns out that, in reality, the outside world beyond those layers of toxic dust has already healed and is inhabitable for humans.

Towards the ending moments of the Hugh Howey Silo book trilogy, Juliette and the survivors reach "Seed," where they find an abundance of materials required for their survival, including seeds that can help them rebuild civilization from the ground up. Charlotte, too, successfully reaches the safe zone and joins their pursuit of reconstructing society.

Everything That's Been Revealed About The Next Silo Book

Hugh Howey Has More Silo Novels Planned

Silo's main characters above the wasteland that lies outside their underground city.

In an AMA (via Reddit), a reader asked Hugh Howey if he plans to expand Silo's lore beyond the first three books. The author responded that he has a second trilogy "planned and outlined," but he wishes to "write them as a different person" since their stories will not be the same as the first Silo trilogy. He also added that he has written the first few chapters of the next book and likes them so much that he doubts if he will ever change them. Whether Apple TV will adapt the subsequent trilogy will depend on Silo's overall success on the streaming platform, but with Silo season 2 coming, the prospect does sound exciting.

Silo TV Poster
Silo

Based on Hugh Howey's Wool novel series, Silo is a sci-fi drama series created for Apple TV and follows an engineer named Juliette, who lives in a dystopian future. With the surface poisoned and the world all but ruined, the residents live in a silo deep underground. When the community sheriff breaks protocol and leads to the death of several residents, Juliette begins to discover the dark truth of the silo.

Release Date
May 5, 2023
Cast
Rebecca Ferguson , Rashida Jones , David Oyelowo , Common , Tim Robbins , Harriet Walter
Rating
TV-MA
Story By
Hugh Howey
Streaming Service(s)
Apple TV+
Related Topics About The Authors