Season 3

Complete listed story — includes the ending

1. New York Strong

After Nora's death and Zach's kidnapping, Eph drinks more heavily but continues working on the anti-strigoi bioweapon for Feraldo. She says its fatality rate has dropped from 100% to 75%. Fet assists Navy SEALs in eliminating vampire nests and searching for the Master; however, Eichhorst lures the SEALS into a trap and the Master kills nearly the entire team. Setrakian, assisted by Mr. Quinlan, continues translating the Occido Lumen. Gus has his turned mother chained in their apartment, feeding her his own blood to sustain her. Kelly, accompanied by her surviving "feelers," goes to her and Eph's home in Queens, where Eph has been hiding out, hoping Zach will return. Kelly offers Zach in exchange for the Occido Lumen.

2. Bad White

After the Navy SEALS leave New York, Fet has a one-night stand with a woman named Kate. Eph rejoins Fet and Setrakian, who are pleased to see him. Quinlan, however, suspects Eph has ulterior motives. As Palmer's health deteriorates, he has his researchers attempt to replicate the "white", the Master's rejuvenating essence. When they fail, he meets with Setrakian and offers to abandon the Master in exchange for the "white" formula. Setrakian refuses, and later tells Fet they may be able to use Palmer's desperation to manipulate him. Eichhorst tells Palmer to influence Justine Feraldo to funnel more victims into the Freedom Centers. Meanwhile, Dutch has fallen in with her old hacker friends who abandon her during a strigoi attack. As Zach attempts to escape the Master's confines, he glimpses Kelly feeding, then, panicked, suffers an asthma attack. The Master treats him with the "white." Quinlan catches Eph attempting to steal the Occido Lumen. Quinlan proposes teaming up to lure the Master with the Lumen so that Quinlan can kill him and Eph can rescue Zach.

3. First Born

Flashbacks depict Quinlan's past. An older woman, intrigued by Quinlan's strangeness, discovered him in a Roman gladiator camp. She believes he will "complete the prophecy". Quinlan tells Eph that the Master is his "father," but that he was conceived by humans. The Master infected his mother while she was pregnant, making Quinlan half-human, half strigoi. Killing the Master will result in Quinlan's own death. Angel discovers Gus is hiding his turned mother. When police "sweepers" inspect the building, they attempt to conceal her but are captured and conscripted to fight strigoi. Fet and Setrakian track Eph and Quinlan to recover the Occido Lumen, using the GPS device Fet hid inside the tome. Eph demands that the Master meet with him to exchange Zach for the Lumen. During the exchange, Kelly tries tricking Eph with a "feeler" disguised as Zach. The Lumen ' s silver cover severely burns Kelly when she attempts to take it. Fet and Setrakian arrive and destroy the turned Navy SEALS that are aiding the Master. Quinlan beheads the Master, but a large crimson-colored strigoi worm crawls from the corpse and escapes. Eph and the others have the Lumen, but appear to have lost Quinlan.

4. Gone But Not Forgotten

During a taped interview with Feraldo, a TV reporter claims the police are forcing conscripted chain gangs to fight the strigoi. Feraldo denies the accusation, then does nothing to stop it after learning it is true. Eph treats Quinlan's wounds, though Quinlan expected to die after killing the Master. The ancients later tell Quinlan that the Master was not truly destroyed, as a crimson worm containing the Master's essence survived. Frustrated, Quinlan severs ties with the Ancients. Gus and Angel are the sole survivors after leading a conscripted "sweep team" through a strigoi-infested tunnel. Gus realizes the strigoi's actions no longer seem coordinated. Setrakian and Fet eject Eph from their premises after learning he helped Quinlan steal the Lumen to exchange it for Zach. Eichhorst sends two turned Feraldo-workers on a suicide mission to their former base of operations. C4 explosives implanted inside their bodies blow the worms everywhere, infecting many staff and killing others. Fet barely prevents Feraldo from being infected. Dutch stays with Eph at Fet's place, resulting in them drinking heavily together. When they go out at night, they encounter a strigoi controlled through the Master announcing he is still alive. Feraldo orders her police to confiscate the TV reporter's computers and video footage of Feraldo's interview, then has the woman arrested.

5. Madness

Many world cities have been infected as strigoi numbers grow exponentially. Eph and Dutch have been capturing strigoi for Eph's biological experiments. Elsewhere, Fet follows two strigoi implanted with GPS trackers. Setrakian and Quinlan continue studying the Lumen. Quinlan and Setrakian note each other's strigoi-hunting obsession, to a point where other hunters were driven mad. Eldritch Palmer, in rapidly declining health, meets Eichhorst's new associate, Sanjay Desai. Eichhorst is pleased when Palmer reports that a cargo shipment from Egypt is on schedule. While performing a strigoi necropsy, Eph discovers that microwaves affect the creature's crude central nervous system, disrupting their collective communication ability. Justine Feraldo and Captain Frank Kowalski are dismayed that strigoi have infiltrated previously secured areas of Manhattan. Fet encounters strigoi digging tunnels for their brethren to enter the city through Central Park. He also discovers a massive strigoi nest. In a flashback scene set in 1972, Setrakian poses as a seller of a fake Occido Lumen to lure and entrap Eichhorst. Instead, he encounters Dr. Draverhaven, the sadistic Nazi doctor turned sentient strigoi. Setrakian overpowers the doctor, eventually dumping him alive into the North Sea, trapped inside a steamer trunk. In the present, Setrakian discovers text hidden within the Lumen's pages: the Master can be defeated by containing him in a silver-lined sarcophagus. Setrakian enlists Palmer's help, offering a dose of the "white" in exchange for learning the identity of the Master's new host body and his whereabouts. Further testing by Eph and Dutch reveals the strigoi can quickly adapt to the microwave interference.

6. The Battle of Central Park

As part of an all-out assault to reclaim Central Park, Feraldo sends Fet and NYPD captain Kate Rodgers, the woman Fet recently slept with, on a dangerous mission to wipe out the underground strigoi nest. Eichhorst and Kelly give Zach a Feeler as his protector. In Central Park, Eph and Dutch gather more strigoi communication data. Gus and Angel escape the chain-gang and run into Fet and Kate. Gus joins them while Angel takes Maria, another conscripted fighter, to safety. Kelly moves Zach to a new location, but he leaves a message behind for Eph. Fet, Gus, and Kate destroy the strigoi nest, but a massive strigoi counterattack overwhelms the NYPD's checkpoints. The nest was a decoy to lure police into the open, forcing Ferraldo to order an immediate withdrawal. Eph finds and searches Zach's vacated room. Eichhorst arrives and taunts him, and in the ensuing confrontation, Dutch severs Eichhorst's hand, forcing his retreat. Feraldo orders a full withdrawal as strigoi overrun Central Park.

7. Collaborators

Fet and Setrakian travel to a Brooklyn pawnshop to gather silver for building a sarcophagus to imprison the Master in. They first stop at Fet's parents' apartment, finding they committed suicide after being infected. Fet recounts how his grandfather, a WWII prisoner of war, also committed suicide, haunted for years by having been a Nazi collaborator who executed Jewish prisoners in exchange for better treatment. Eph and Dutch isolate a signal they believe is the Master's voice. They and Quinlan travel to JFK Airport to retrieve the black box from the airplane the Master flew to America in. They need a pure sample of his voice to compare with their signal. A dying Palmer and his security team board the ship, Aurora Cutlass, in search of its mysterious cargo from Egypt. The crew is dead and the cargo hold empty. In exchange for his promise to track down the Cutlass' s cargo, Setrakian gives Palmer a single dose of the "white," which revives him.

8. White Light

Eichhorst inspects the processing plant for harvesting human blood. He is angry that Sanjay Desai did not use live subjects to test the system. He brutally uses Desai's assistant as a subject, killing him. Gus' turned mother returns to their apartment and attempts to attack Angel, forcing Gus to shoot her. Flashbacks depict how Gus' maternal uncles made his abusive father "disappear"; in the present day, Gus and Angel decide to leave New York. With a rejuvenated Eldritch Palmer's assistance, Setrakian and Fet gain access to the Freedom Center where they interrogate the Aurora Cutlass ship agent and learn the Egyptian cargo was taken to the processing center. Palmer admits that over a hundred similar blood plants are being built in North America. Fet and Setrakian invade the processing center, but Eichhorst, Desai, and their subordinates escape with the cargo. While playing the black box recording of the Master's paralyzing signal, Dutch collapses. Eph revives her and, later, the two become intimate. During a meeting to form a new alliance, Quinlan and the Ancients are ambushed by Eichhorst and a strigoi army. Quinlan escapes as Eichhorst detonates an atomic bomb that destroys the Ancients' hideout.

9. Do or Die

A flashback to the early 1960s depicts Palmer seeking a position within his estranged wealthy father's corporation. Mr. O'Neil rebuffs his illegitimate son and offers Palmer a $10,000 check to sever their ties. Bitter and dejected, Palmer invests the money into building his own corporation, naming it Stoneheart as a nod to his uncaring, cold-hearted father. In the present, the NYPD leave New York; a few captains stay behind with Justine Feraldo. Fet goes to warn Eph and Dutch that the police have left and the city will fall within two days. Dutch and Eph opt to stay and continue working on their invention. The device works, disrupting attacking strigois' communication ability and rendering them inert. Gus and Angel come to the aid of Feraldo, Captain Kowalski, and the remaining NYPD captains as strigoi attack their vehicle in the street. All are killed except Gus, who escapes to safety. Quinlan survived Eichhorst's attack on the Ancients and regroups with Setrakian and Fet. Eph and Dutch have brought the device, claiming it will incapacitate the Master. Fet, however, wants Eph to leave. Meanwhile, Palmer and his security team locate the Aurora Cutlass cargo and capture Sanjay Desai. The crate contains a nuclear bomb, one of two that Eichhorst had smuggled from Russia by way of Egypt. Eichhorst used one bomb to destroy the ancients. Palmer confiscates the remaining weapon and lures Eichhorst into a trap where he and his team brutally shoot him. Severely wounded, Eichhorst leaps down the elevator shaft, his fate unknown. With limited time before the Master learns what happened, Palmer must immediately meet with Setrakian.

10. The Fall

Palmer and Setrakian devise a plan to lure the Master to Stoneheart headquarters so that Eph, Fet, Dutch, Setrakian, and Quinlan can entrap him in the silver-lined sarcophagus. However, the Master, who has taken a new body, ambushes Palmer and transfers his essence into him, gaining Palmer's memories. The Master retrieves the remaining nuclear bomb from Palmer's vault and revives the mortally wounded Eichhorst. The latter leaves to plant the bomb in the Statue of Liberty, giving Kelly the detonator that is later taken by Zach. Eph and Setrakian meet with Palmer but quickly realize it is the Master and battle him. Dutch activates the strigoi disruption device, crippling the Master; Quinlan, Fet, Eph, and Setrakian seal the Master into the silver-lined sarcophagus. Eph, slightly wounded, stays behind to treat himself, as the others take the sarcophagus to dump it into the Atlantic. Kelly, accompanied by Zach, enters Palmer's office and attacks Eph, forcing him to kill her in self-defense. Enraged over his mother's death, Zach vengefully detonates the bomb. The explosion's shockwave frees the Master from the sarcophagus, and the resulting nuclear debris obscures the sun, allowing the strigoi to walk freely in daylight. Eichhorst leaves with Zach, while Setrakian's group is forced underground to avoid nuclear fallout and rampaging strigoi. Outside amid the chaos, Eph searches for Zach.