The passengers wake up on board the Origin, abandoned in space. They search for other survivors, but find something else entirely.
A tense showdown prompts a difficult decision. Shun and Lana realise that the threat could be nearer than any of them thought.
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?
An object from Earth threatens to blow SIREN’s mission wide open, while suspicion boils over into full blown paranoia.
A chilling revelation changes everything, while SIREN itself is called into question.
