While Abraham and Vasiliy try to obtain the Lumen, Kelly disguises herself as a human and continues her search for Zach.
Eph returns to NYC, disappointed after Eldritch outmaneuvered him in DC. Meanwhile, Dutch is reunited with a former lover, and Abraham and Vasiliy meet a new ally.
Kelly goes after Nora and Zach. Meanwhile, Eph meets with his friend and contacts a pharmaceutical company rep in an effort to get the virus mass-produced so that the National Guard can distribute it.moreless
Eph makes plans to take the virus to the military in Washington, but Nora insists on staying behind with Zach. Meanwhile, Kowalski asks Vasiliy and Dutch for help, and Eldritch takes Coco out for dinner.moreless
Abraham and Dutch go to speak with Eldritch's former bodyguard. Meanwhile, Eph and Nora study the effects of their virus on the strigoi population, and Gus confronts his mother.
Vasiliy and Dutch plan to secure the area by sealing the subway station, while Nora and Eph continue to work on a way to wipe out the strigoi plague. Meanwhile, Eichhorst brings Eldritch a new bodyguard as Vaun and Gus prepare to kidnap the philanthropist.moreless
While Vasiliy and Dutch clean out a local strigoi nest, Nora and Eph experiment on two volunteer subjects to find a way to kill the creatures without killing humans.
While Ephraim and Nora try to create a biological weapon to destroy the strigoi, Abraham asks them and Vasiliy for help recovering some of his weapons. Meanwhile, Palmer purchases a factory and makes a friend, and Eichhorst informs Kelly that the Master has a new purpose for her.moreless
Abraham and his team of vampire hunters track the Master to the lair and confront the grand vampire in a climactic showdown. Meanwhile, Gus receives a job offer.
While Dutch returns to help Eph get on the air and broadcast a warning about the vampires, Eldritch waits for the Master to bring him his payment. in the past, Abraham goes questing for the Master only to discover that he's stumbled into a trap.moreless
While Eph, Vasiliy, Abraham, and Nora search the subway tunnels beneath the World Trade Center for the Master, Zack is left behind at the pawnshop to watch over Mariela. Meanwhile, Gus returns home and discovers what happened to his brother and mother.moreless
Eph goes to find Kelly and finds signs of a struggle. Meanwhile, Dutch convinces Vasily to help her stop Eldritch's plan and restore the Internet, only for Fitzwilliam to capture them.
Eph goes to find Zach and discovers that Kelly is missing. Meanwhile, Felix turns and Gus has to deal with his friend, and Dutch reveals her role in Eldritch's plan.
After meeting Vasily at a medical supply store, Abraham and the others take refuge in a convenience store, and meet the hacker who aided Eldritch in shutting down the Internet. The Master's vampires find them and lay siege to the store, and the humans must find a way to escape before they're overwhelmed.moreless
Eph and Abraham use Jim as bait in a plan to track down the Master. Meanwhile, Neeva encounters a mysterious stranger, and in the past, Eichhorst orders a young Abraham to complete a most unusual carpentry program.moreless
Eph is arrested by the FBI. Meanwhile, Eichhorst gives Gus a job to do.
Eph joins Abraham on his quest to destroy the passengers and anyone that they've infected. Meanwhile, Nora goes to see her mother and Gabriel's manager Ruby finds herself having to clean up one of his victims.moreless
As his friends conduct an autopsy on Redfern's transformed body, Jim makes a startling confession. Meanwhile, Gus gets a new job and Ansel takes desperate measures to protect his family.
Eph and Nora fight to save Captain Redfern's life. Meanwhile, Abraham is released from jail and gets the passenger manifest, while Jim meets with Eichorst and discovers the price he has to pay for his wife Sylvia's health.moreless
The four survivors in quarantine start showing unusual symptoms. However, Everett overrides Eph's attempts to quarantine them. Meanwhile, an old friend visits Abraham.
The second Mass' victory is short lived when they discover that the Volm plan on shipping them all off to camps in Brazil.
Tom returns safely back to the camp, angry about the death of Lexi and Anne. He comforts his sons and instructs them to use their pain for strength in avenging their deaths. Lourdes continues to sabotage the camp, but has she pushed her luck too far?moreless
Tom wakes up in a pre-invasion world.
The Picket family rob the Masons as they search for Anne and Alexis leading to a stand-off for their supplies.
The Masons are in for trouble when Hal 's intentions come to the surface.
Marina disobeys orders, Weaver searches for two missing 2nd Mass members and after a mission goes pear shaped, Tom and Pope finds themselves relying on each other to survive.
Another alien attack is thwarted resulting in a meeting between Tom and a powerful leader.
The mole is still at the front of everyone's minds, especially when they come under sniper fire from a young girl. Anne continues to worry about her baby.
Taking place several months after the end of last season's final episode, the 2nd Mass attempt to liberate children who are being forced to work a mine, guarded by skitters and mechs.
Arthur Manchester investigates a mole in the ranks, and the Volm seek assistance in destroying a power source for Espheni weapons.