After a nuclear incident, the secret of the asteroid becomes public, setting the world on a dangerous course. Darius, Grace, Liam and Harris must adapt to new roles in an ever-shifting landscape of fear and civil unrest.
Loyalties are tested when Grace is asked to lie under oath. Also, Darius tasks Liam with a dangerous mission, and a shocking act of violence plunges the nation into chaos.
Darius and Grace's relationship is tested when her secret is revealed. President Mackenzie tries to unify the fractured country. Re/Syst issues a deadly threat.
Desperate to defuse a nuclear standoff, Liam gets help from an unlikely source. Also, with Darius missing, Harris and Grace take matters into their own hands.