Eph and Nora work on a weapon to kill the strigoi, but Setrakian puts the group at risk by searching for an ancient text, while the Master introduces a new breed of creature and taps Kelly to control it.
Eph returns to New York intent on going after the individual responsible for his friends' deaths. Meanwhile, Setrakian and Fet launch an attack on the Master using Fitzwilliam's tip; and Dutch has a surprise visitor.
Eph must protect Zack against a surprise intruder into Red Hook. Gus convinces the Guptas to make a difficult choice. Fet and Setrakian set out to acquire the Lumen but discover they are not the only potential buyer.
Eph and Dutch work to execute Eph's plan against Palmer. Meanwhile Fet & Dr. Martinez accompany Setrakian on his search for the Lumen's true owner. And Councilwoman Feraldo makes a bold move in her quest to take New York City back from the Strigoi.
Gus helps the Guptas get across the border; Fet, Nora and Eph look all over the city for Dutch, who's in a life-or-death struggle with Eichhorst; Setrakian meets a familiar face while searching for the Occido Lumen.
The Lumen's auction starts in 24hrs. Setrakian seeks the Ancients backing. Gus seeks allies from his past. Zach's Grandparents found leaving Eph with a choice. Eldritch discovers the "White" has an unexpected price at Eichhorst's delight.