After escaping Gabriel's aerie, Alex and Norma head to New Delphi and pick up a fellow traveler. In Vega, Claire starts to realize who and what oppose her. And Michael finds himself in a small town in Alabama where faith in God is stronger than he's ever seen.
Alex meets with the ruler of New Delphi, but a visit from Gabriel interrupts their discussion. Meanwhile, Arika helps Claire use an eight-ball to discredit David, and Michael learns more of the townspeople's faith.
Alex hopes to be able to prove himself to a new ally. Claire requires help from an old friend.
Alex and Noma find the secret behind Julian's control of New Delphi. Meanwhile, an angel attacks Claire and Gates, David negotiates with the rebels, and Michael and Gabriel reach an understanding.
Alex spearheads a plan to intercept Michael and Gabriel, who have breached the walls of New Delphi in pursuit of their mutual target; Claire begins the negotiation process with the revolting V1s; at the same time, David attempts to restore his legacy by any means necessary.
Alex attempts a dangerous eviction in an effort to save Vega from an impending attack; at the same time, Michael plots their escape from New Delphi; and Claire desperately navigates the fallout of Civil War as Gates travels behind enemy lines to hug a broadcast that threatens peace in the city. Elsewhere, David procures his role in the rebellion following correspondence with an unexpected ally.
Alex finds unexpected shelter to nurse a wounded Noma, with the New Delphi army hot on their trail; at the same time, Michael and Gabriel attempt to escape their mutual captivity while revisiting a past that haunts them both; and Claire calls for a dangerous parlay as David puts a plan in motion to secure his legacy in Vega.
Alex, Noma and Michael near Vega; at the same time, Julian presses Riesen for the location of the amphora by dredging up his past. Meanwhile, a military standoff ends in disaster, forcing Claire to make a harrowing decision; and an unexpected face wanders the city streets claiming to be the Chosen One.
Alex, Noma and Michael hit an unexpected road block; Claire's judgment call threatens the security of Vega; Julian changes tactics; Arika and Gates wrestle with the cost of survival.
Michael faces the repercussions of his time in Mallory; Alex and Gates try to save Vega from destroying itself; David comes to terms with his past; Gabriel unleashes an unspeakable evil.
The Darkness overtakes the citizens of Vega; William wrestles with the truth about his time in the desert; Arika becomes the victim of her own manipulations; Michael grows concerned about Noma; Alex searches for the Amphora.
With Vega smoldering, Michael squares off with Gabriel; Noma's past is explored; Arika contemplates her escape; William makes a decision that seals Vega's fate; Alex tries to save everyone.
The 8-Ball Army breaches the walls of Vega at the same time, David makes one final sacrifice to secure his survival. Meanwhile, Gabriel forces Michael back to Mallory; Noma's dark secret is revealed; Claire is desperate for closure; and Alex fights for control of the only home he has left.