Plot

Hal stumbles across bodies of de-harnessed kids and finds someone from his past. Tom and Anne grow closer. And Weaver's health deteriorates just as Tom discovers he may have been keeping important matters from the group in order to protect them.—Anonymous

Captain Weaver's infection spreads in his body and is poisoning him while Anne does her best efforts trying to save him. Hal and Maggie go on patrol and find several human bodies without harness on their way. However, there is one alive and they find that is Karen and bring her to the camp. Ben warns that they cannot trust her but she convinces Hal and the survivors that she has no recollection of what has happened with her. Tom asks for a guard in front of her room and Hal questions Ben's suspicions that says that she has manipulated him.—Claudio Carvalho, Rio de Janeiro, Brazil

Tom and Anne wake up in their shared room in the hospital, where they've been hunkered down for two weeks. They enjoy how almost normal it seems. Tom remembers the old days, including the smell of coffee brewing and his boys fighting and his wife breaking them up. He apologizes for bringing up his wife, but Anne understands -- she had a husband, too. This is the life they have now and they're enjoying it.

Tom gets to Weaver's briefing late, expecting him to jump on him. He does, giving a mini-lecture on complacency and how they can ill afford it. Tom notices Weaver's arm twitching, then suddenly he's flopping around like a fish. Tom looks at Weaver's skin and they see his veins are turning black. "What have those damn aliens done to me?" Weaver asks.

They bring him to Anne, who knows immediately that it's the result of the infection in his leg spreading. It's the wound from the skitter spike and Weaver forbid Anne from telling Tom.

Tom is crappy to her and yells at her for keeping the secret. He wants to get Weaver to Charleston ASAP, where a doctor might have a better idea how to help him. Anne tries not to be insulted. Tom resolves to leave for Charleston tonight.

Maggie goes on patrol despite her stitches, wanting to get out of the hospital. Hal tries again to convince her to go out with him, but she's resolved not to. She asked to be transferred to another unit.

As they're walking out in the woods they see a human foot under leaves. It's a dead child with their harness removed. There are more of them. They uncover all the bodies and check for a pulse. They're all dead except one: Karen.

Tom addresses the troops, telling them he wants to leave for Charleston tonight. Jamil points out Weaver has had him using the diesel from the trucks to power the generators, but they haven't been able to find more fuel. Worse, they only have 12 hours of the generator left.

Tom orders them to conserve the generator and sends out fuel search parties.

Hal and Maggie return with Karen, who's barely breathing. Ben warns them not to let her in, saying she's still connected to the aliens. He can hear it.

Tom orders her brought to a secure room. Later, she wakes up surrounded by Maggie, Anne, Hal and Tom. Ben tells them again not to trust her.

Karen tells Tom not being able to stop the aliens from torturing him was horrible.

She only remembers being on the ship and then waking up and seeing Hal's face. She guesses that she'd served her purpose so they removed her harness. She tells them she's happy to be home. Maggie doesn't believe her.

Ben wants to stay with her, saying he has the best chance of finding if something's not right. Hal asks Ben why he's being so suspicious. Ben has never met her -- she got captured trying to rescue Ben.

Ben says she'll manipulate Hal and he should stay away. Hal is angry, but Maggie thinks Ben is right.

Tom checks on Weaver and Anne says he's getting exponentially worse. She thinks the toxin in Weaver needed time to mature. Tom wants to just drive him to Charleston, but Anne doesn't think he can be moved. They get in a shouting match over whose call it is that ends when Tom accidentally calls Anne by his dead wife's name. Anne understands. They continue calmly, with her asking to have until midnight to come up with a plan and if she can't, then Tom can take him. Tom thinks the survival of the 2nd Mass depends on Weaver.

Ben sits outside Karen's room. She asks about Uncle Scott and Ben says he's dead, along with a lot of other good people killed by her "masters." She plays dumb.

He tells her he can hear her, she's still connected to them. She says she just hears a kind of static. She describes being harnessed like having a hand wrapped around her throat, moving her around like a rag doll. She says being on the mother ship was 10 times worse than being with the skitters.

Ben goes to get her more bread and Karen seems to enjoy the effect she's having on him.

Lourdes has a plan for Weaver. They noticed his temperature was dropping, which is the opposite of what happens with an infection. They think heating him might slow or stop it. They want to try a technique of pumping out his blood, heating it, and pumping it back in. They ask Jamil to build a machine to do it.

One of the fuel scouting parties comes back. They don't have fuel, but they do have Pope and Anthony. Pope's knocked out. Anthony says they got hit outside of Durham and he got them out of there but eventually collapsed. Anne says Pope has a concussion but should be fine.

Ben brings Karen more food. He mentions they're leaving, but says he doesn't know where. Karen tells him she can hear conversation far away. She also has crazy strength. She picks up her bed. He rushes over to her and tells her to put it down. When he gets close to her their spikes start glowing, they can feel what the other one is feeling. They're close to kissing when Hal comes in. Ben runs out.

Jamil has a machine rigged and ready to go but it's going to take eight hours to pump all his blood. Tom apologizes to Anne for thinking he knew better. They're talking when the power goes out in the generator. Tom works Weaver's blood pumping machine manually. Jamil brings the generator in and hooks it up.

Tector comes back with a truck bed full of fuel.

Maggie tracks down Hal. He thinks something bad is going to happen to Karen. He thinks Ben's trying to recruit her. He tells her what happened between Karen and Ben.

Maggie takes it to mean the opposite and tells Hal to find Ben because if anyone's in danger, it's him.

Maggie goes to the room where Karen is being held and relieves the guard. She goes in and pulls guns on Karen and tells her to quit pretending.

Karen turns the tables on her, saying she doesn't deserve Hal. She keeps taunting Maggie until she fires. Karen runs up a wall and flips over Maggie's head, kicking her to the ground. Karen is standing over Maggie when she hears Ben approaching. She throws herself against a wall for effect and, with Maggie unconscious, tells him that Maggie tried to shoot her and they (Karen and Ben) aren't safe here.

Ben says he knows a place where they'll be accepted, but they have to leave. Ben shows Karen to the stairs and they run up to the roof.

Hal follows them up there, telling Ben to come with him. Ben says they need to leave for their protection and for the 2nd Mass. Ben walks toward Hal and grabs him around the neck, knocking him out. Karen says she's sorry it came to this.

Ben and Karen stare out into the darkness off the roof. Their spikes glow. He takes her hand and they jump off the top of the four stories and run into the woods.

Inside, Weaver seems to be getting better. He's breathing on his own and his temperature is getting back to normal. But Anne has no way of knowing what other damage was done.

Tom worries about what to do about the lack of fuel, food and ammunition. Anne assures him they'll get through it together. Weaver wakes up. "How much fuel did we burn saving my sorry ass?" he asks.

Pope is awake and asking for Tom. He says it's life and death. Tom visits Pope, who is fighting to get out of bed. He says the aliens are on their way to get Ben. Pope ran into a bunch of them and a blonde girl was talking for them. They realize he's talking about Karen.

They wanted to know where to find Ben and there was some talk of a skitter rebellion. That was at least two days ago.

Tom races off to find Karen, and finds Maggie bleeding on the floor. He finds Hal unconscious on the roof.

Ben and Karen run through the woods, their spikes glowing.