Silo Season 4, the show's final season, premieres Friday, July 9, 2027 on Apple TV. Apple announced the date on September 4, the same day as the Season 3 finale, according to Just Jared, and released a first look at the season.
The preview contains major spoilers for the Season 3 finale. GamesRadar says it first appeared as a post-credits scene after Season 3, Episode 10, and shows Paul exposing the Silo Project to Silo 18 and a confrontation between Juliette and Daniel/Troy.
Rebecca Ferguson returns as Juliette Nichols and is an executive producer. Apple lists Common, Harriet Walter, Chinaza Uche, Avi Nash, David Oyelowo, Rashida Jones and Tim Robbins in the cast, according to TV Series Finale. Ashley Zukerman and Jessica Henwick are also expected back, per GamesRadar, which says flashbacks are expected.
Season 4 was shot back to back with Season 3, and filming wrapped on March 6, 2026, according to GamesRadar. Creator Graham Yost has said “pretty much all the mysteries are answered by the end of Season 4,” per the same report. The season concludes the story of Hugh Howey's novel trilogy.
Apple has not said how many episodes the final season will have or whether they will release weekly.
- Just Jared: When Does 'Silo' Season 4 Premiere?
- GamesRadar: Silo season 4 release date, plot theories, cast, and everything we know about the final season
- TV Series Finale: Silo: Season Four; Apple TV Unveils Premiere Date & Teaser for Final Season
- 9to5Mac: Silo season 4 just got its release date on Apple TV and first trailer