Ravi comes up with a cure for the zombie plague, but warns Liv that it's in short supply. Meanwhile, Major refuses to tell Blaine where the stolen astronaut brains are, and Clive tries to locate Teresa's killer.moreless
Crowley discovers that Dean is becoming increasingly difficult to control, and contacts Sam to make a deal. Meanwhile, Sam escapes from Cole and returns to his hunt for his brother, and Hannah tries to make a deal with Metatron to save Castiel's life.moreless
Now that Arrow has crime in Starling City under control, Oliver tries to have a personal life. However, he and Roy are forced to forgo their personal plans when a new Count Vertigo begins dealing drugs, and a charming scientist makes a bid for Queen Consolidated. Meanwhile, Diggle has a new child, Quentin gets a promotion, and Laurel joins Arrow's crimefighting efforts.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
Clarke and Finn grow closer as they try to communicate with the Ark. Meanwhile, Bellamy maintains order within the group.
Gus' night terrors send him to a dream therapy clinic where he discovers a new form of terror.
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.
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.
While Liber8 seems to be trying new tactics to win over the public with their messaging, Kiera is alerted to the possibility that there is another Protector's suit like hers that has been activated somewhere in the city. Alec helps her pinpoint it's general location. The race is on when Sonya and Travis discover the CPS suit, too.moreless
In the Season 2 finale, the skitters draw closer to the consolidated resistance force. Elsewhere, the 2nd Mass come across their biggest threat as Tom discovers game-changing information.
Tector makes the decision to embrace his military past, while Maggie becomes suspicious that Pope will be leaving he group. The 2nd Mass continue to meet new people along the way, as Tom runs into a former untrustworthy mentor.moreless
Tom lands himself another captive andBen is lead into danger at the hand of someone he trusts. The unit faces a brand new enemy while trapped in the basement of a building.
While on patrol, Hal and Maggie discover an unharnessed and alive Karen among a group of half-buried unharnessed corpses. Tom has some tough decisions to make when Weaver falls gravely ill from the bite he received at the harnessing factory.moreless
A skitter is captured and imprisoned at the camp, Hal bonds with Maggie as they discuss her past, and a familiar figure returns to the group with questionable motives.
The 2nd Mass moves into an airport hangar but the situation gives Anne reason to worry about the health of the group. Meanwhile Pope and The Berserkers hatch a plan to deal with Tom. The group suffers a great loss but receives a promise of hope from a mysterious visitor.
Tom begins to wonder if his mind was affected during his captivity whiles truggling with the memories of what happened while he was with the aliens. While trying to find a way to escape the approaching Mechs and Skitters the 2nd Mass comes across a bridge that could lead them to safety, when the bridge is damaged it's up to Ben to scout the area for signs of the enemy while Jamil attempts to repair the bridge to allow the convoy to cross. Ben makes a discovery and along with Hal, Dai and Karen must launch an attack to protect the rest of the group.moreless
Sarah and Holder are on the run after returning to the casino. Richmond and Stan make decisions that will change their lives substantially.
Sarah's in a precarious position. Holder investigates to see if there is a connection between Rosie's murder and the Mayor's water front project. Stan tries to make amends. Richmond gets a boost in the polls.moreless
The SIU is attacked by a highly-trained group of Spetsnaz our to kill Kane and anyone else in the building. The team must fight their way out before dawn.
New member Sarah is welcomed to the team, as they investigate the complex web of suppliers of drugs in Seattle, and when a gang are discovered out in the woods it leads to Nikoli, a major Russian dealer.moreless
Shawn and Gus investigate a man who has disappeared from a local retirement community.
Jaime's new mission entails the protection of a contractor's daughter. At the same time, she ponders whether or not to help Sarah move past her personal demons.