A survivor’s life hangs in the balance – and they hold the key. A new discovery threatens to tear the group apart.

Weakness leads to danger, as our passengers truly begin to understand what they’re up against. But who can they trust?

The acclaimed drama concludes. In the aftermath of the Silo tragedy Karen feels she and Sam have no future and takes matters into her own hands. Niska and Astrid prepare…

When Mattie reveals that the Synths are planning to break into the Silo, Laura is determined to find Niska and ask for her help. Mattie asks Max to help save…