Apple TV+ continues to dominate the sci-fi landscape, and Silo is proving to be one of its most gripping offerings. The third season, which adapts Hugh Howey's second book Shift, has been weaving two timelines: Rebecca Ferguson's Juliette fighting for survival in the present, and the pre-apocalypse story of journalist Helen Drew (Jessica Henwick) and congressman Daniel Keene (Ashley Zukerman) as they uncover the truth behind the silos.
Now, with Episode 7, titled "Radio," the show is set to deliver some major revelations. Collider has an exclusive sneak peek at the episode, which introduces Colin Hanks as Per Stenson, a billionaire with a proposition that could change everything for Helen and Daniel.
In the clip, Helen and Daniel find themselves in a hangar, where Stenson greets them instead of Senator Thurman. He explains that to enter the facility, Helen must sign a non-disclosure agreement—or walk away with nothing. But he sweetens the deal: sign, and she'll learn "the world's most important secret," plus a cool $1 million for each of them. For Helen, the idea of being bought is insulting, but Daniel, desperate for answers about his sister, seems ready to sign regardless of what his partner decides.
This new addition to the cast is part of a broader expansion for Silo Season 3, which also brings in Laura Innes, Jessica Brown Findlay, Morven Christie, Reed Birney, and Matt Craven. These actors help flesh out the pre-apocalyptic world, adding layers of mystery that mirror the intrigue of the underground shelters.
Created by Graham Yost, Silo is set to conclude with Season 4 next year. Ferguson has promised that the final season will answer all the lingering questions, and Yost revealed at San Diego Comic-Con that the show's intricate plotting required writing far in advance, meaning the cast has known the ending for years.
Episode 7 of Silo Season 3 premieres on Apple TV+ on August 14. Check out the exclusive clip above to see the high-stakes negotiation unfold.
