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.
The 2nd Mass finally make it to Charleston but is there anybody there for them to join up with?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.
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.
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.
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
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