Showrunner Graham Yost has spilled some major details about what to expect, and it’s clear the series is taking a bold turn—time travel to the origins of the Silo project itself. Let’s break down everything we know so far.

Season 2’s Explosive Ending

Season 2 wrapped up in spectacular fashion, but it left us with more questions than answers. The final moments revealed that Iran detonated a dirty bomb in the US, which seemed to spark the catastrophic events that led to the creation of the Silos. The devastation is palpable, but we’re still unclear about the exact scope. Was it just this region or the entire world? And what exactly is keeping the outside uninhabitable for over 300 years?

Fans have speculated that it’s not just radiation causing the deadly conditions outside the Silos. Could it be a biological weapon? An AI system ensuring no one leaves? The mystery only deepens as the show prepares to dive into the past.

A Journey to the Past

Season 3 will adapt parts of Shift, the second book in Hugh Howey’s series, and focus heavily on the events that led to the Silo project. This means we’ll be traveling back in time, long before the events of seasons 1 and 2. According to Yost, this shift in timeline allows us to understand the origins of the Silos and the decisions that doomed humanity to a subterranean existence.

While Juliette (Rebecca Ferguson) wasn’t a major player in this part of the books, fans of the show can breathe a sigh of relief—she’s not going anywhere. Yost confirmed that Juliette will have a significant role in season 3, so expect the timeline jumps to keep her story front and center.

Familiar Faces Returning

The finale also hinted at the return of two characters as series regulars: Daniel (Ashley Zukerman) and Helen (Jessica Henwick). Their expanded roles suggest a deeper dive into their backstories and their connections to the Silo project. These characters could provide critical insights into how humanity’s last refuge came to be.

Big Questions for Season 3

Theories are already flying about what season 3 will reveal. Will we finally understand what kind of weapon created the toxic environment outside? Is it radiation, biological fallout, or something more sinister? And how does the AI factor into all of this?

Season 3’s focus on the past means we’re in for a narrative departure from the present-day drama of the Silos. But with four planned seasons to cover all three books, it’s clear the creators are taking their time to flesh out this intricate world.

Why Fans Are Hyped

For those who love a good origin story, season 3 is shaping up to be a must-watch. The chance to explore how the Silos came into existence and the motivations behind humanity’s drastic measures is too good to pass up. Plus, the mix of past and present timelines promises to keep things fresh and unpredictable.

If you’ve been following Juliette’s journey, you’ll be glad to know she’s still a vital part of the story. And with the added depth of Daniel and Helen’s arcs, season 3 is set to expand the Silo universe in ways fans have only dreamed of.