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.
New mayor Juliette can't remember anything from her time outside—or her past.
2 July 2026
Billings investigates a disappearance. Daniel Keene has a run-in with a reporter.
9 July 2026
Juliette takes control of her recovery process. Helen suffers consequences of her investigation.
16 July 2026
The race to evade Camille leads Juliette to a shocking discovery. Daniel seeks help from a friend.
23 July 2026
The events following Juliette's return come to light—and unexpected allies are made.
30 July 2026
Billings and Hank stumble on a new mystery. Daniel and Helen receive a surprising proposition.
6 August 2026
Juliette sends Lukas and Kennedy on a mission, as a desperate Camille threatens Robert to tell the truth.
13 August 2026
Knox's father Gus comes clean about a secret. Charlotte makes a life-changing decision.
20 August 2026
The entire silo is stunned by an announcement from Camille. Daniel and Helen attend a special event.
27 August 2026
A leader wakes to a new world.
3 September 2026