President Elias Martinez and CIA Director Blake Sterling can't decide what to do about Simon Lee, who they know is a secret agent for the aliens. So they decide to let him wander off and call Sophia so they can listen in on the conversation. Unfortunately for them, there's another mole in the White House, who leads Simon to freedom in a manner suspiciously similar to the way that Neo got out of that office building near the beginning of The Matrix.
So now that they've lost track of Simon, Martinez needs to start a new program to find any other moles in the White House. It's his new Number One Priority! He tells Senator Catherine Lewis (you remember her as the spunky Alaskan Senator who stumbled upon the Inostranka files) to spread around a story about a phony TB scare so they can test the DNA of every single American, starting with the ones in the White House. And everyone in the White House agrees to it, with the significant exception of the First Lady, who I will remind you is almost definitely an alien. I told you several episodes ago. AND YOU CALLED ME MAD!
Simon's escape takes him to the gated community that Thomas set up, so I guess that place is close to Washington, DC. Which I think is dumb. In retrospect, I think they should have set up their community in a different country. Let President Martinez freak out while all the aliens hang out in Canada, right? At least, until the other two million of them show up. Sophia's preparing to kill a bunch of humans to make room, which Simon objects to. So he's taken away for prompt murdering. Incidentally, it looks like Simon is both Thomas's father and Sophia's son. So: incestuous aliens. Forget it, Jake. It's Alientown.
Finally, Sean and Vicky get very specific directions from Henri, which lead to a Dempsey Ambush. Vicky is last seen tied up in a lovely French chateau that's being set on fire by a goon with no respect for tasteful furnishings.
Previously: KABOOM! The Washington Monument blowed up real good! And that probably took a pretty big chunk of the special effects budget, so we can expect to see it a lot from now on. When things bog down, we'll probably see characters get a thoughtful look, then a thought bubble will show the Washington Monument blowing up in slow motion. It could be the new going-to-commercial tag.
But enough about the extremely expensive demolition of the Washington Monument. Let's return to the narrative, in which Sophia's bus goes through a portal. As you may remember, they had just enough uranium (or "portal juice," which is a lot more fun to say, not to mention less reminiscent of certain real-world issues) to portal one bus, so the other two had to get exploded. That took care of Thomas and Isabel, too. Going through a portal takes longer than you'd think, and there are a lot of sound effects and blue lights. When the dust clears, their bus is in that gated community that Thomas set aside. Sophia and about sixty of her compatriots have successfully escaped!
In the White House, President Martinez has some monitors that show him the two burnt-out busses. He wants the troops to get in there and get identifications for all the people who were on them. That's pretty gruesome work, judging from the size of the fireball that killed the 120 (or so) people in there. But they've got some "cameras on the ground," which probably means that everyone in the Situation Room will get to see everything that the troops see. These people need to learn to delegate a little, don't they? We don't need the President of the United States and the Director of the CIA micromanaging every single thing. I guess Sterling might not actually be the Director of the CIA, because he's got a lot of other responsibilities too. My point is that it's probably a pretty complicated technical undertaking to be broadcasting helmet video from Los Angeles so the people in Washington DC can watch over people's shoulders. It's hard enough work to be stacking up burnt corpses without knowing that the president is watching you at all times. Sterling isn't even watching, because he has to congratulate Simon on a job well done. Which is weird, because Simon didn't have anything to do with this operation. He didn't even know it was happening until last episode. Then Sterling and Martinez slip into the hall for a secret conversation.