Season 3

Season 310 episodes2026 5.9

Overview

Season three reveals an origin story set centuries earlier, while continuing the saga of a dystopian society of 10,000 people living underground under mysterious circumstances. In the present, Juliette Nichols survives her forced "cleaning" but returns with memory loss as the silo recovers from rebellion and faces a dangerous new threat. Meanwhile, in the "Before Times," journalist Helen Drew and Congressman Daniel Keene uncover a conspiracy that pulls them into a chain of events with catastrophic, irreversible consequences.

Season cast

Rebecca Ferguson
as Juliette Nichols

Common
as Robert Sims

Chinaza Uche
as Paul Billings

Ashley Zukerman
as Daniel Keene

Shane McRae
as Knox

Remmie Milner
as Shirley Campbell

Alexandria Riley
as Camille Sims

Reed Birney
as Henry

Laura Innes
as Senator Thurman

Jessica Brown Findlay
as Charlotte Keene

Billy Postlethwaite
as Hank

Morven Christie
as Anna

Episodes

10 in this season

Who Are You?

1. Who Are You?

New mayor Juliette can't remember anything from her time outside—or her past.

2026-07-0256 min

It's All Good

2. It's All Good

Billings investigates a disappearance. Daniel Keene has a run-in with a reporter.

2026-07-0951 min

A Dark Web

3. A Dark Web

Juliette takes control of her recovery process. Helen suffers consequences of her investigation.

2026-07-1649 min

Whatever You Do, Don't Go Home

4. Whatever You Do, Don't Go Home

The race to evade Camille leads Juliette to a shocking discovery. Daniel seeks help from a friend.

2026-07-2348 min

Memory

5. Memory

The events following Juliette's return come to light—and unexpected allies are made.

2026-07-3054 min

6. The Drive

No synopsis.

2026-08-06

Radio

7. Radio

No synopsis.

2026-08-13

Gray Goo

8. Gray Goo

No synopsis.

2026-08-20

9. Farewell

No synopsis.

2026-08-27

10. Troy

No synopsis.

2026-09-03