Apple TV+ has renewed Silo for Seasons 3 and 4 at the streamer, with the fourth season being its last one.

The series, based on Hugh Howey’s dystopian novel trilogy, is currently in the middle of its second season, which runs through Jan. 17, 2025.

“It has been a richly rewarding experience to adapt Hugh’s epic novels with our partners at Apple and we are thrilled to have the opportunity to bring this complete story to the screen over the course of four seasons,” said showrunner and executive producer, Graham Yost, in a statement. “With the final two chapters of Silo, we can’t wait to give fans of the show an incredibly satisfying conclusion to the many mysteries and unanswered questions contained within the walls of these silos.”

“The addictive, inventive and moving Silo has had us hooked since day one and we’ve loved watching global audiences become equally enamored with the world that Graham Yost has created,” added Matt Cherniss, head of programming for Apple TV+. “As we look to seasons three and four of this ambitious, character-driven sci-fi series — which will conclude Juliette Nichols’ journey and complete Hugh Howey’s epic trilogy of novels. We can’t wait for everyone to experience more of the show’s powerful performances led by the incomparable Rebecca Ferguson, as well as the unexpected twists, turns and surprises that we’ve come to expect from this very human story.”

What Rebecca Ferguson says about ‘Silo’ ending

“I’ve loved every minute of bringing Juliette to the screen and am immensely proud of what we’ve all created with Silo since the first episode,” said star and executive producer, Rebecca Ferguson. “I have always felt passionately about telling the entire story contained within Hugh Howey’s books, so I couldn’t be happier that audiences around the world have enthusiastically embraced the show. Alongside our parters at Apple, Graham, and the entire cast and crew, I cannot wait to dive into these final two thought-provoking seasons that will beautifully conclude this dystopian tale.”

What is ‘Silo’ about?

Here’s the official description:

Silo is the story of the last ten thousand people on Earth, their mile-deep home protecting them from the toxic and deadly world outside. However, no one knows when or why the silo was built and any who try to find out face fatal consequences. Rebecca Ferguson stars as Juliette, an engineer, who seeks answers about a loved one’s murder and tumbles onto a mystery that goes far deeper than she could have ever imagined, leading her to discover that if the lies don’t kill you, the truth will.

Who else stars in ‘Silo’?

Season 2 of Silo also stars Tim Robbins, Common, Steve Zahn, Harriet Walter, Chinaza Uche, Avi Nash, Alexandria Riley, Shane McRae, Remmie Milner, Billy Postlethwaite, Rick Gomez, Clare Perkins, Caitlin Zoz, Tanya Moodie and Iain Glen.

The series is produced for Apple TV+ by Apple Studios. Graham Yost, Michael Dinner, Nina Jack, Joanna Thapa, Rebecca Ferguson, Morten Tyldum, Hugh Howey, Fred Golan, Rémi Aubuchon and AMC Studios are executive producers.