Plot

Tom's mission to destroy the Espheni Power Core is complicated by Lexi's return. Lexi is forced to take extreme measures to save her father's life - and her own - after a Beamer malfunction. Meanwhile, the second Mass fears an impending Espheni strike by the scorched Overlord.—Anonymous

Lexi arrives in the camp raising tension among the survivors and she wants to apologize since she learned that the Espheni are the enemy, but Tom and the survivors do not trust her. Lexi discuss with Anne that she may pilot the Beamer and that she is the best chance of success in the mission of destroying the Espheni power core. Weaver and Anne tell Tom about Lexi's proposal of flying in the mission and Tom agrees. Hal gives to Tom an Espheni poison to use if Lexi betrays him. Soon Lexi and Tom travel to the moon, but the spaceship is getting colder due to a breech in the hull. Lexi builds a cocoon to protect Tom and he has a perfect journey.—Claudio Carvalho, Rio de Janeiro, Brazil

The camp converges on Lexi, with guns drawn. Pope is ready to waste her, but Tom wants to hear what she has to say.

Lexi came to apologize. Anne notices Lexi's eyes are back to normal. She says she understands now that the Espheni are the enemy. She wants to acts as their weapon, but Tom doesn't see how they can possibly trust her again.

Meanwhile, Pope runs to get a rifle. Weaver tries to stop him, but Pope knocks him out and runs to take the shot.

Lexi sees it coming in slow motion and is able to grab it out of the air and crush it. Lexi says they have no reason to be afraid, but Tom says they have no reason not to hate her. Anne wants a chance to see if Lexi is telling the truth, but Tom tells Anne to keep Lexi away from him.

Tom storms off to confront Pope, who says he can't stand the idea of burying more people. Tom has some sympathy for the fact that Pope is affected because he's finally caring about people other than himself, but warns him that he crossed a line going after Lexi and Tom won't let it happen again.

Tom goes to talk to his sons, who are just as distrustful of Lexi. Tom simply says the moon launch is back on.

Inside the beamer, Tom loads the bomb. Cochise is worried and wants Tom to wait until he hears from his father, who might be able to help take out the power core. But he's not sure if his father will respond at all -- Cochise confesses that he disobeyed his father to stay on earth and help fight, so he and his men are the only Volm in the area.

Anne talks to Lexi as Weaver stands guard. Anne is worried that Lexi is under Espheni control, but Lexi explains she was never under their control, she was just confused. Anne rants again about not being able to trust her. Lexi tells Anne she's their best chance of destroying the power core. She says she can control the beamer's systems.

She tries to convince Anne that she can fly the beamer, but Anne tells her she can't stay. Weaver interrupts, telling Anne she's making a huge mistake.

Weaver and Anne tell Tom about Lexi's offer to go on the mission instead of Ben. Weaver goes all history professor on Tom and reminds him about the allies having to team with Stalin to defeat Hitler.

Tom reluctantly agrees. Everybody takes their verbal shots at Lexi as she and Tom head toward the beamer. Anne tells them both to come back in one piece.

Before Tom gets on the ship, Hal gives him an Espheni poison to use on Lexi just in case.

Everyone watches as the ship takes flight.

Tom struggles to breathe as the ship clears the atmosphere, but is OK once they're above it. Lexi engages the homing beacon as they head to the moon.

Tom notices the ship is getting colder. Lexi checks and finds a breech in the hull is draining the life support and energy. She suggests they lower life support to a minimum or they won't have power for the return trip. In order to keep them alive the rest of the way there, she suggests an Espheni cocoon.

Tom is reluctant, but goes along because it's the only option. Lexi wraps him up, telling him to just breathe deeply. He gets nervous, remembering that's what she said to Lourdes right before she killed her. But before he can panic too much, she puts him to sleep.

The next thing Tom knows, Anne and Hal are digging him out of the cocoon. He's back on earth and the mission is over.

They take him outside and show him a massive crater on the moon, caused by an explosion a day after he left. Hal explains that the scorched overlord attacked but he ran when the power supply was destroyed.

Anne takes him to see Lexi, who is recovering. Her platinum hair is now brown, like her mother. She tells him the life support drain on the battery was worse than she thought so she didn't wake him up. The power supply flooded the ship with radiation, which seems to have washed Lexi's Espheni DNA from her system. She can't hear them anymore.

Lexi promises to spend her life making up for what she did to Lourdes, but Anne assures her she's one of them now.

Later, Weaver tells Tom that all the ghetto walls have fallen and the scorched overlord has fallen back. They think they might have a fair fight for the first time.

At night around a campfire, Maggie comes to thank Lexi. Tom notices Pope is gone. Anne says Pope left after the beamer launch and no one has seen him since.

Tom hears cheers and Anthony reports that Dingaan's attack on the scorched overlord was successful. Tom starts to get angry that the attack was authorized without him, but Weaver says Hal authorized it and it was a success.

Anne takes Tom back to their room and starts kissing him, but Tom can't shake the feeling something isn't right. He's bothered that Weaver blew him off, and that they already have word of Dingaan's attack 30 miles away. He thinks it's too perfect.

Anne tells him that there are no fights to be fought and Lexi's dream of peace is finally coming true. Tom tells her he doesn't feel like he's there. Tom wants to talk to Lexi and Anne says she'll go find Khadar who, Tom points out, is dead -- but Lexi doesn't know that.

Tom steps outside of his room and into an empty camp full of rubble. He goes looking for Lexi, but finds Weaver. He tells Tom that Lexi is afraid of what Tom will think when he wakes up. Weaver tells him to accept her. Tom rushes him and stumbles into the next vision of his sons telling him to cut Lexi some slack, like he did when the Espheni messed with each of them -- Ben with his spikes, Hal with the eye bug, Matt with the brainwashing school. "Wehre were you when she needed you?" Hal says, and swings at him.

Tom wakes up by a fire with his hands bound. He sees Lourdes, who tells him Lexi is terrified he won't forgive her. Tom talks into the night, telling her she's hiding behind everyone.

Finally, she appears and Tom tells her he understands she's scared. She tells him she's not doing it on purpose, but she put herself in the cocoon with him and they're dreaming together. He tells her he regrets not being able to forgive her, but they have their remorse in common and it makes them human. They wake up.

Lexi shows Tom their final approach to the moon and promises that talk can be the first of many father daughter talks.

Back in the hull, the bomb slowly leaks.