Bernard enacts a plan to root out Knox, Shirley, and Walker. Billings takes a stand. Solo saves Juliette's life and wants something in return.

Juliette tries gaining the trust of Deputy Marnes as they work to uncover the truth about recent tragedies.

Sims appoints Billings as chief deputy to keep tabs on Juliette, whose efforts to solve two murders lead to a showdown.

Juliette finds sanctuary in a silo long ago destroyed by war, thinking she's alone.

Juliette discovers something's happened to Solo. Bernard makes an offer to Walker. Lukas meets with Salvador Quinn's descendants.

In Silo 18, shock and unrest take hold in the wake of Juliette doing what no one's done before.

Sims finds himself with a new position. Juliette learns Solo isn't being honest. Bernard and Lukas make an important discovery.

During her investigation, Juliette uncovers disturbing secrets about someone she thought she knew.

Juliette sets out on a dangerous quest to retrieve a suit so she can return home and save her silo. Mechanical plans a meeting with Judge Meadows.

Lukas is assigned a mission. Mechanical sends a powerful message. Juliette embarks on a perilous descent—and confronts a new danger.

Bernard turns to Judge Meadows for help. Billings begins to wonder if he's being lied to. Juliette finally meets the man in the vault.

Juliette, an engineer, pieces together what might have led to a co-worker's mysterious death.

Bernard seeks Juliette's cooperation as he grows increasingly concerned about the silo's security. Juliette asks her father for a favor.

Billings' faith is shaken. Lukas heads to the down deep. Knox identifies the traitor. Juliette uncovers the truth about Solo's past.

Sheriff Becker's plans for the future are thrown off course after his wife meets a hacker with information about the silo.

In her hunt for a new sheriff, Mayor Jahns clashes with Bernard. Juliette strikes a deal to keep the generator running.

New information causes Juliette to see her family's past differently—and she finally gains access to the silo's biggest secrets.

The rebels make their move—and so does Juliette.

Racked with guilt, Billings sets off on a personal mission, only to discover a mind-blowing clue from Juliette.

Juliette's fate seems sealed when certain truths finally come to light.