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.
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.
The season two premiere begins three months after Tom Mason agreed to go with the alien invaders. Weaver is still in command of the 2nd Mass, while Anne continues to serve as medic. They have seen many battles and are a much leaner unit now. Pope has taken command of the Berserkers, a renegade group within the 2nd Mass that Weaver doesn't fully trust. When Tom suddenly returns, he is faced with doubt about his loyalties to the group. Meanwhile, Hal and Ben continue to drift apart as Ben challenges his older brother's authority.moreless
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.
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.
The 2nd Mass finally make it to Charleston but is there anybody there for them to join up with?moreless
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.
Arthur Manchester investigates a mole in the ranks, and the Volm seek assistance in destroying a power source for Espheni weapons.
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.
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
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.
Another alien attack is thwarted resulting in a meeting between Tom and a powerful leader.
The Masons are in for trouble when Hal 's intentions come to the surface.
Hal and Ben have their bikes stolen while out on patrol and the hunt to retrieve them leads to the discovery of something much bigger. Matt finds himself in serious danger and Weaver rediscovers a lost family member.
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?
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.
The Picket family rob the Masons as they search for Anne and Alexis leading to a stand-off for their supplies.
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.
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.
The second Mass' victory is short lived when they discover that the Volm plan on shipping them all off to camps in Brazil.
Tom wakes up in a pre-invasion world.
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