Silo Season 4 Will Finally Answer One Key Apple TV Sci-Fi Mystery

Silo season 3 just debuted on Apple TV, but the star and creator are already teasing the final season, which is expected to reveal the biggest mystery of the entire series.

Based on Hugh Howey’s literary trilogy (which includes Wool, Shift and Dust), Silo debuted on Apple TV in 2023 with Rebecca Ferguson playing engineer Juliette Nichols, who lives in a silo with thousands of others as they attempt to protect themselves from the outside world.

Ferguson and creator Graham Yost, who wrote the script for Speed and has produced shows like Justified and Slow Horses, spoke with Collider amid the Silo season 3 premiere and teased what’s to come for the rest of the series.

Both the third and fourth seasons were filmed nearly back-to-back with each other, so even though viewers are just getting the chance to watch Silo season 3 now, production on the entire show is already over, so Ferguson knows how the sci-fi series ends.

“Season 4 is about getting the answers in [season] 3, and then how are they going to do it?” she teased, with Yost adding, “How are they going to survive? How is it going to play out?“

Every season of Silo has an antagonist, and the final season will be no different. Yost described it as being like a video game where the final level has the “big boss” that the hero has to defeat.

“It’s unexpected, in a way,” he said. “There are mysteries every season, and pretty much all the mysteries are answered by the end of season 4.”

As the creator, showrunner and executive producer, Yost wanted to ensure that he and the rest of the producing and writing team answered enough questions by the end of Silo season 3 so that viewers “didn’t feel like they were being strung along.” That way, the final season could focus on the endgame of the entire series.

Rebecca Ferguson: “Season 4 is about getting the answers in [season] 3, and then how are they going to do it?”

Graham Yost: “How are they going to survive? How is it going to play out? Season 4 is a big—

Rebecca Ferguson: “How is it going to all happen?”

Graham Yost: “I would say that every season there’s an antagonist, and season 4 is—you know how in a video game, it’s the big boss at the end of the final level? It’s the big boss.”

Rebecca Ferguson: “Oh, that’s good!”

Graham Yost: “It’s unexpected, in a way. There are mysteries every season, and pretty much all the mysteries are answered by the end of season 4. We wanted to make sure that we answered enough by the end of season 3 that the audience didn’t feel like they were being strung along.”

Since season 4 has already been filmed, Ferguson and Yost both admitted that they sometimes get confused about what storyline is in each season, with the former saying, “I’m already getting them confused…I sat down and went, ‘Did this happen?’ He’s like, ‘No, that’s 4. Stop it.”

Yost confirmed that feeling of disorientation because it’s been happening to him as well. As he explained, “I’ve had things where I’m like, today, thinking, ‘Was that season 2 or season 3?’ which is a bad sign. I have to sort of really walk through the storylines and go, ‘Okay, no, that didn’t happen here.’“

Rebecca Ferguson: “I’m already getting them confused. We shot them all basically in one. I sat down and went, ‘Did this happen?’ He’s like, ‘No, that’s 4. Stop it.’”

Graham Yost: “Oh, I’ve had things where I’m like, today, thinking, ‘Was that season 2 or season 3?’ which is a bad sign. I have to sort of really walk through the storylines and go, ‘Okay, no, that didn’t happen here.’”

Ferguson’s Silo co-stars include Common, Tim Robbins, Harriet Walter, Avi Nash, Rick Gomez, Chinaza Uche, Shane McRae, Remmie Milner, Alexandria Riley, Clare Perkins, Billy Postlethwaite, Steve Zahn, Ashley Zukerman and Jessica Henwick. Joining them for season 3 are Reed Birney, Laura Innes, Jessica Brown Findlay, Morven Christie and Matt Craven.

After the first season ended with Juliette leaving the only home she’s ever known, she spent Silo season 2 venturing out and trying to figure out the truth but eventually returning. The finale closed with Juliette and Bernard in the incinerator, along with a pre-dystopian flashback.

Now the third season has just premiered, with a new episode being released every week until the finale on September 4.

Silo season 3 streams Fridays on Apple TV.

Release Date

May 5, 2023

Network

Apple TV

Showrunner

Graham Yost

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  Rebecca Ferguson

  Juliette Nichols

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