Lumen and Dexter are plotting their break-in to Jordan's empire with Harrison's stuffed animals, which is not to say that they intend to attempt the break-in with stuffed animals. They're having a hard time thinking of ways to bypass all of the security. Lumen says that they need to draw him out of his lair, but Dexter says that he has everything he could need in his fortress. Lumen points out that he doesn't have her, but Dexter says it's too dangerous to use her as bait. She says that it worked with Cole, but that's really not a very good example. Were it not for Dexter's impeccable timing, she'd have been a goner. She says that she can do this and he says that he knows she can, because he saw her kill Alex Tilden. Maybe it's different for serial killers, but I don't think I could say out loud, "I saw you kill blankety-blank." It would definitely be one of those Vegas things for me. Like, yeah, I know we did that thing where we killed, dismembered and disposed of that dude, but we don't have to talk about it.
Anyway, Dexter says that they have more to worry about than Jordan's security. There's also the police and, more importantly, Deb. Lumen apologizes to Dexter for putting him in a position where he has to lie to her, but Dexter says that, though it's not his favorite thing, it's not the first time he's lied to her. Lumen asks (for the audience?) if Deb has never suspected anything in regards to Dex's proclivities and he says that he thinks maybe she has a blind spot when it comes to him. She's not like him and Lumen.
So, Lumen finds it tender that Dexter just referred to them as "us" and comes in for an embrace. Suddenly, Dexter sees a live bird's eye video image of where he is right now -- on Harrison's baby monitor. Sometimes, when I'm maybe on a date that isn't going well or when I'm running and don't want to -- I see the same thing. He's freaked out because a surveillance camera's signal got mixed with the monitor and he knows someone is watching them. He pulls Lumen to her feet, hugs her and whispers what is happening. Dexter runs outside and starts looking for a van that could be hosting the surveillance. He VOs that Jordan must be behind this, but there are vans EVERYWHERE.