Apple TV+'s hit sci-fi series Silo returned for its sophomore season in late 2024, and now the dystopian drama has scored a renewal for season 3. Based on the eponymous novel trilogy by Hugh Howey, the series follows the remaining survivors of the post-apocalypse, who live underground in a massive silo complex. The impetus for the show's drama is a woman named Juliette (played by Rebecca Ferguson) who doesn't accept the government's story regarding the past and how humanity came to live in the silo. The first season was a smash for Apple TV+, and more episodes were swiftly ordered.

Season 2 continues the show's trend of high tension as Juliette has finally defied those in charge in her quest to discover what really happened to humanity. Escaping the silo, Juliette finds something that will turn the entire series on its ear, and she quickly becomes a folk symbol for the rest of the residents of the complex. This escalation is clearly not going to be resolved in two seasons alone, and plans are already in place to continue the story in more seasons. Now, Apple TV+ has mapped out Silo's future for the next two seasons.

• All seasons of Silo stream exclusively on Apple TV+

Silo Season 3 Latest News

New Cast & A Filming Update

Hot on the heels of the season 2 conclusion, the latest news confirms that new cast have ed Silo season 3. After appearing in the season 2 finale, Ashley Zukerman (Succession) and Jessica Henwick (Game of Thrones) are set to reprise their roles as Congressman Daniel and newspaper reporter, Helen, respectively. The duo were part of the flashback sequence in season 2's shocking conclusion, and they will now return in a recurring capacity for season 3. This will likely help flesh out the past which has only been lightly touched upon in Silo thus far.

On top of that, a filming update for Silo seasons 3 and 4 has also been provided by showrunner Graham Yost. Coming as something of a surprise in the era of long breaks between streaming seasons, Yost has confirmed that production on season 3 is already months along. Furthermore, he revealed that production on seasons 3 and 4 will happen back-to-back with only a short break in between. This means the show's final two seasons should come in rapid succession.

Silo Seasons 3 & 4 Are Confirmed

Apple TV+ Has Ordered Two More Seasons

Not only did the streamer secure the show's future for the time being, they also announced that season 4 would conclude the story

Though the writing was on the wall that Silo would get renewed, Apple TV+ made the surprising decision to order not one, but two more seasons of the twisting sci-fi drama. Not only did the streamer secure the show's future for the time being, they also announced that season 4 would conclude the story, thus allowing the trilogy of books to be fully explored on the small screen. While the looming cancelation (after season 4) is somewhat disheartening, Apple TV+'s transparency about the series means viewers won't be left in the dark regarding renewals.

Silo season 2 premiered on November 15, 2024, and concluded on January 17, 2025.

Since then, producer and showrunner Graham Yost has announced that production on Silo season 3 is already months along as of January 2025, and that plans are in place to film season 4 immediately afterward. While a release date is still elusive, it can be assumed that seasons 3 and 4 won't be as long of a wait as season 2 was. It was also confirmed that the season 3 episodes won't be as visually dark as season 2's, something that caused annoyance with viewers.

Silo Season 3 Cast Details

Who Will Return In Season 3?

Though the full fate of the main characters hasn't been revealed yet, it's safe to assume that many of the show's stars will be around when the show returns, especially since bigger things are likely looming on the horizon. The most logical return is that of Rebecca Ferguson as Juliette, and her status as a martyr among the remaining of the silo community means she's a key figure in the story. Likewise, major ing figures like Common's Sims are a necessity.

While his fate was left somewhat vague in the season 2 finale, it has since been confirmed that Tim Robbins' Bernard is indeed dead, and was killed by the Safeguard procedure. The same goes for Iain Glen's Dr. Pete Nichols, who laid down his life to save others. On the other side of that, two new cast from season 2 will appear in a recurring capacity in season 3. Ashley Zukerman (Succession) and Jessica Henwick (Game of Thrones) are set to reprise their roles as Congressman Daniel and newspaper reporter, Helen, who appeared in the season 2 finale flashbacks.

The presumptive cast of Silo includes:

Silo Season 3 Story Details

Did Juliette Survive The Fire?

The ending of Silo season 2 was filled with twists and turns, and though there have been changes from the books, it sticks somewhat closely to the literary source. Returning to the silo, Juliette finds Bernard, who is preparing to leave after being convinced. Unfortunately, the duo get caught in the Algorithm's Safeguard procedures and are engulfed in flames. Juliette's firesuit will likely keep her from dying, but Bernard was killed (according to showrunner Graham Yost). Meanwhile, the Algorithm shockingly selects Camille as the next leader, and it's unclear how she'll proceed.

All this changes the balance of power within the Silo, and with the dangerous knowledge that Juliette picked up from Solo, she'll continue to be the computer's target. With Silo season 3 confirmed, and season 4 following close behind, it's clear that Juliette's journey is only halfway done.