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
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
Deathbolt, a metahuman who can fire plasma blasts from his eyes, goes on a killing spree in Starling City. Oliver is forced to lie low after Roy claims to be Arrow and lets himself be arrested, so Ray offers to help against the new threat. In the past, Oliver finds out who is responsible for the attacks on him and Maseo's family.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.
The 2nd Mass finds refuge in a Volm hideout, but tensions with the Volm continue to rise. Meanwhile, Tom teams with Weaver and Cochise in a search for Matt, and Anne reconnects with Lexi.moreless
We find the remaining 2nd Mass outside of Charleston when they are suddenly under attack from a new Espheni threat, dangerously different from anything they have previously faced. Finding themselves separated from each other, The Masons must find ways to survive by building new friendships and acquiring new skills and abilities.moreless
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.
Another alien attack is thwarted resulting in a meeting between Tom and a powerful leader.
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.
Exploring the world outside of Hidden Hills, the Bird- Kersees head to the city to see a Broadway musical which in turn inspires Larry to put on one of his own. Everything goes well until the fancy footwork slips up Dick and they call 9-1-1 - instead of going to Marty and Debbie.moreless
The Bird-Kersees get Marty to teach them to drive a car, they can fly a space ship so how difficult can driving be. Amber decides to use a Driver's Ed teacher instead of her dad, a decision she soon regrets.moreless
When the entire Weaver family gets a cold and Larry Bird learns there is no cure, Larry quarantines the Weaver house.
Marty and Debbie move into a new community only to discover that their neighbors are aliens.