Karl, Ronnie, and Stan are trying to hold their own against Jinsoku, but the chamber is full of soldiers and the ceiling is coming down.

Ryan and Sam chase after Yamainu, who has taken Gideon captive! Can they reach him in time? Can they get out before the tunnel collapses?

Ryan and Ronnie reunite with Stan and Karl, thanks to Shirotaro's help, and they all race back down to the underground. Time is running out.

Sam realizes what's at stake if he allows Jinsoku to win, and Jinsoku reveals what his plan has been all along.

It's the end of the line. Sam must choose where he's going to stand, and this time there's no turning back.

Mia tries to engage the strange man, Yamainu, in conversation, and she gets more answers than she bargained for.

Ronnie and Ryan get help to reach Washington DC, but can they get there in time to make a difference?

Stan experiences a harrowing vision of Sam's armor, but is it real? And how are he and Karl going to find Sam in time to help him?

Sam and the Warlord Jinsoku continue to seek an escape from the DC Underground, and Jinsoku has something to teach Sam.

Mia has been captured by someone she doesn't know, a mysterious man who calls himself Yamainu. He works with Jinsoku--or does he?