'Silo' Season 3: Plot, Release Date & Everything We Know So Far

The third season of Silo, a dark sci-fi series about people living in an isolated underground bunker, will premiere in 2026.

Here is what happened in the finale of Silo's second season, and what to expect from Season 3.

'Silo' Season 3 Release Date & Streaming Platform

The second season of Silo began airing in mid-November 2024. In December, before the second season finale had even aired, Apple announced the show's renewal for two more seasons.

The third season of Silo is scheduled for release in 2026, though the exact date is unknown. While viewers may expect the premiere in early 2026, other reports suggest the third season will be released midyear.

Season 3 will likely consist of ten 50-minute episodes. The show will continue to air on Apple TV+, with new episodes released weekly.

What Happened in the 'Silo' Season 2 Finale?

Juliette learned that each bunker contained The Safeguard: a large container of poisonous gas capable of instantly wiping out all the inhabitants of a silo.

She returned to Silo 18 and told the people inside that it was unsafe for them to go to the surface.

Mayor Bernard was about to go to the surface and commit suicide, but Juliette convinced him not to. While attempting to return to the bunker, the characters found themselves in a sealed room with a deadly air purification system.

The final five minutes of the second season are a flashback to a time before the Silos existed. We see a Georgia congressman on a "date" with a reporter named Helen.

The episode takes place after the Iranian-made dirty bomb detonates in Washington.

The unnamed official is apparently one of the creators of the post-apocalyptic survival project. He mentions that he did something significant in the military using his engineering background.

What Will 'Silo' Season 3 Be About?

The third season of Silo is expected to reveal the mystery of Silo 17 and explain who was behind the creation of the entire bunker system.

The third season will continue Juliette's story. After a brief visit to another bunker, she returns home and must shut off the hidden poisonous gas and restore order.

The season will also delve into the creation of the Silos, unfolding the story before the tragic events that rendered Earth's atmosphere uninhabitable. This means that the congressman from the second season finale will become a major character in the upcoming chapter.