As the 8-Ball Army breaches the walls of Vega, David makes one final sacrifice to secure his survival. Gabriel forces Michael back to Mallory wherein they uncover a chilling surprise.
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.
Michael gambles with his life as he faces the repercussions of his time in Mallory. Alex & Gates spearhead a mission to save Vega from destroying itself.
With the threat of the New Delphi army hot on their trail, Alex finds unexpected shelter in which to nurse a wounded Noma. Meanwhile, Michael & Gabriel attempt to escape their mutual captivity while revisiting a past that haunts them both.
With time running short, Alex attempts a dangerous eviction in an effort to save Vega from impending attack as Michael plots their hopeful escape from New Delphi.
When innocent higher angels turn up dead in Vega, Michael enlists Alex to help protect the others, but Gabriel exposes a long-hidden secret that threatens to tear them apart.
A powerful Vega senator takes the city's leaders and food supply hostage with one demands announce the secret identity of the Chosen One to the public or suffer the consequences.
Alex attempts to escape his responsibilities as the Chosen One by leaving Vega, but an encounter with Gabriel's forces leave him and Michael fighting for their lives