The Master takes a new body to defeat Abraham, who is planning with the others to use the scrambler and the box to send the Master to a watery tomb.
New York begins falling and Eph and Dutch try to finish their new device before the city gets overrun. Elsewhere: Justine, Gus, and Angel make a final stand against the virus.
Quinlan negotiates with the Ancients, while Eldritch gives Abraham and Vasiliy the information that they need to track down the Master's mysterious cargo. Meanwhile, Dutch is injured during an encounter with the Master's voice.
Abraham and Vasiliy search for the silver they need to contain the Master, and Vasiliy makes a stop to check on his parents. Meanwhile, Eph and Dutch convince Quinlan to accompany them on a trip to JFK Airport to recover the black box from the Master's original flight.
The humans begin an assault on Central Park to eliminate the strigoi nest beneath it, and Vasiliy spearheads the efforts. Meanwhile, Dutch and Eph try to translate the strigoi communication patterns, and receive word that Zach is still alive.
Abraham and Quinlan discover the secret to the Master's defeat, forcing Abraham to reach out to a former ally and current enemy for assistance. Meanwhile, Vasiliy tracks tagged strigoi to discover how they are penetrating the safe zones, and Eph and Dutch search for a way to block the strigoi's communication system.moreless
Justine tries to take back NYC after the Master is seemingly killed, but Eichhorst has his own plans. Meanwhile, Dutch finds her way to Eph, and Quinlan discovers that the Ancients are holding back vital information from him.
Vasiliy and Abraham trace the Lumen after Eph and Quinlan and take it. Meanwhile, Gus convinces Angel to help him get Guadalupe out before the safe street vigilantes find them, and Quinlan's connection to the Master is revealed.
While Eph considers the Master's offer, Eldritch reaches out to Abraham to make a deal. Meanwhile, Zach meets the Master for the first time, and Dutch discovers that there's no going back to her old life.
The battle for New York City continues but the humans find themselves outnumbered and outgunned. Meanwhile, Abraham works with Quinlan to translate the Luman despite Vasiliy's warnings, and Kelly pays Eph a visit.