As they walk, Joshua experiences a series of flashbacks. The Gua inflict painful shocks on him and haul him away for sentencing.

In his memory, he insists, "I am not a traitor!" The judges read the charges and find him guilty.

In the present, Joshua asks Cade how he found the Gua base. Cade points out that "abandoned factories" don’t usually use gigawatts of power.

"Why are you doing this?" Joshua asks.

"There was a time I asked you the same thing," Cade replies.

In the first of a mind-numbing series of clips from previous episodes, we see a scene from ‘Joshua’. A Gua agent is about to shoot Cade in the back, but Joshua shoots her down first.

In the flashback, Joshua says, "I did it for myself."

In the present, Joshua tells Cade that he was wrong to take matters into this own hand. "Realignment showed me my crimes," he says.

Joshua insists that he is now at peace – but images of his previous defiance flash through his brain.

In the present, a loudspeaker crackles. The Gua tell Joshua that he can redeem himself by turning himself and Subject 117 in.

"I can’t let you do this," Cade says. Joshua moves closer, and Cade fires a shot past him into the wall.

"I mean it," he says.

Two men shouting, with pictures

Joshua wants to turn himself in. Cade won’t let him, telling him to "admit what the Gua are doing is wrong."

"Who decided the Gua were the superior life form?" Cade asks.

They hear the voices of people searching. Cade warns Joshua to be quiet, and the Gua doesn’t call out.

After they pass, he warns Cade that the Gua victory is inevitable – that they will eliminate humanity and make their own paradise out of earth. Cade disagrees, and reminds him that the Gua have sinister plans for their own people as well.

Joshua is not impressed. He and Cade continue to exchange rants until a blob of clear jelly slithers into the room.

It’s a bio-weapon from the Gua homeworld, recently improved and adapted to Earth’s atmosphere. Cade and Joshua try to remain still so that it won’t sense their motions, but it jumps on Cade’s jacket.

Joshua helps Cade rip the jacket off and toss it away. They flee to another room.

After a quick change of scenery, Joshua and Cade stand around and argue some more. Joshua claims that he only saved Cade’s life so that he can turn the human in later.

"You’re lying," says Cade.

"Give me your gun and you’ll see," Joshua replies. "You think you know who I am inside this husk?"

In the flashback, Cade and Joshua trade a human boy for a disk containing the identities of hundreds of Gua operatives. Joshua tells Cade, "You get your boy, I get my operatives – maybe we’re not so different, Foster."

The new and improved Joshua disagrees. He tells Cade, "We couldn’t be more different."

Another flashback belies this. We see more of ‘Joshua’, in which Cade decides he can’t simply kill Joshua and discovers the Gua vulnerability to salt.

The discussion continues. Joshua tells Cade about the Gua homeworld and their reasons for invading.

Cade speculates that the Gua attempt to conquer humanity didn’t go according to plan. He suggests that Joshua realized that humans were so strong that the Gua could lose the war.

"There are things about us you don’t know," Joshua says. "It’s more complicated than you think."

Something happens! Hurrah!

The interrogator walks through the wall, gun drawn. Joshua reminds Cade that "there are things about us you don’t know" – husks who can walk through walls being one of those things.

"It’s over," the interrogator tells Joshua. "You blew it."

The interrogator is looking forward to dissecting Cade, but she has nothing but contempt for Joshua. She says, "We gave you an opportunity to redeem yourself and you didn’t accept it."

"Let’s move," she tells them. She doesn’t notice the bio-weapon jelly creeping up on her, though, and when she turns it leaps on her and kills her.

Joshua grabs her gun and levels it at Cade. "Come with me or I’ll be forced to shoot," he says.

Cade refuses to go. He doesn’t think Joshua will be so dishonorable as to shoot him in cold blood.

Joshua is confused, but he grabs Cade and hustles him through the dark halls of the factory.

Cade reminds him of the time – in "Joshua", of course – when Joshua told him what "Gua" meant. After a minute and a half of dialogue, the Joshua of the past reveals that it means "power to overcome."

"If you kill me," Cade says in the present, "you kill the best hope to end this war."

Gua agents close in on Cade and Joshua. They’re armed and ready to shoot on sight.

Joshua stands, and thinks. He sees images of the other Gua and their hatred of him. He decides.

"History will record my betrayal," he tells Cade.

"No," Cade says as they clasp hands. "You’re a patriot."

Armed Gua suddenly surround the patriot and his ally. Cade and Joshua look around and conclude that they are trapped.

"We go down fighting," Joshua says. He hands Cade a gun and they go out in a blaze of Butch-and-Sundance glory.

. . . if it weren’t all a dream

The upload ends. Joshua’s personality has been transferred into the orb – though the technician comments that he saw a strange surge of cortical energy near the end.

"It doesn’t matter," the interrogator says. "Joshua is no more."

She takes out the sphere, which will be carefully guarded and put into stasis when a suitable vessel is found. Then she puts a second orb into the machine and the technician downloads a new personality into the husk.

The interrogator says, "Hello, Cain." Cain orders her to get him down, and she helps him out of the machine.

Once he’s freed, he examines his body approvingly. The interrogator tells him, "We’ve been expecting you."

"So nice to be here," he replies.

Cain laughs an evil laugh.