AceShowbiz - Silo starring Rebecca Ferguson is officially nearing its conclusion as Apple TV confirms filming has wrapped on the show’s final two seasons. The sci-fi drama, based on Hugh Howey’s acclaimed Silo trilogy, has steadily built momentum since its debut, and now both Season 3 and the concluding Season 4 are complete in production.

The Apple TV+ series has been praised for its immersive storytelling and complex underground world. After Season 3 finished filming in May 2025, the production team moved directly into wrapping Season 4, marking a significant milestone for one of the platform’s standout sci-fi offerings. Apple initially renewed the show for these two final chapters in December 2024, with confirmation that Season 4 would mark the end of Silo.

The narrative centers on Juliette Nichols, portrayed by Rebecca Ferguson, who leads a talented ensemble cast including Tim Robbins as Bernard Holland, Common as Robert Sims, Harriet Walter as Martha Walker, and Steve Zahn as Solo. The third season also introduces new characters played by Ashley Zukerman and Jessica Henwick, exploring the pre-apocalypse timeline within the series’ universe.

Silo has been lauded for blending dystopian themes with human emotion and survival, building a gripping atmosphere beneath the surface of an isolated society. Collider’s Tania Hussain gave Season 2 an 8 out of 10 rating, highlighting the show’s “uniquely immersive environment” and “razor-sharp writing.” Hussain praised Ferguson’s nuanced performance and the dynamic chemistry between Ferguson and Zahn, whose character Solo adds a spirited contrast to Juliette’s serious demeanor.

“Steve Zahn is at his absolute best in a barren playground where his character creates the rules,” Hussain wrote. “The interplay between Solo and Juliette enriches the narrative, illustrating loneliness with a childlike wonder while heightening the stakes.” The series’ 10-episode seasons allow for expansive world-building and strong supporting performances, deepening the emotional resonance of the story.

As both Seasons 3 and 4 await release, fans of Silo can look forward to the full adaptation of Howey’s novels, with the final chapters promising to bring closure to the mysterious underground saga. Season 1 and Season 2 are currently available for streaming on Apple TV, offering viewers a chance to catch up before the new episodes arrive.

Showrunner Graham Yost has guided the series through its evolution, ensuring the story remains tightly focused on the characters’ struggles within the silo’s oppressive environment. With filming now complete on the concluding seasons, anticipation will grow for how the series wraps its complex narrative.

Stay tuned to Collider for the latest updates on Silo and its upcoming season releases, which continue to cement the show’s reputation as a compelling and thoughtful addition to the sci-fi genre on streaming platforms.