When Rosen drops him off, he announces to his mom that since he missed his bedtime, he plans to stay up all night. After he goes in, his mom starts to rip into Rosen, who interrupts, "He met a girl." He pretty much glosses over what she's like, which seems to calm Gary's mom down a bit, if not actively cheer her up. Kind of a craven way for Rosen to get himself out of trouble, but at least he looks guilty after saying goodnight.
Next morning, Gary sets the Red Flag tablet computer down in front of Anna. She gets right to work with her hairbrush and other non-verbal linguistic tools, which apparently the computer is configured to use as input. Gary digs this, especially when the computer starts translating everything Anna's doing to text and an electronic voice: "Now we can really talk, one friend to another." Anna's a little forward, isn't she? She's interested in Gary's ability to read EM waves. Nina hollers in at them to get back to work. Which they do, starting with the message Gary tracked to the house. Too bad Nina wasn't on that Star Trek: The Next Generation episode where Geordi spent a whole crisis flirting with a holographic simulation. Not that Gary and Anna are like that at all.
At the office, Bill has an inbox full of translated e-mails from Gary, starting with something about the US DOT and a string of digits. I'd mock the idea that anything to do with the Department of Transportation could be scary, but I live in Minneapolis and it's August 1. Meanwhile, Rachel is explaining to Rosen that the singed carpet fibers indicate an Alpha with an ability to emit highly powerful and focused discharges of static electricity. Thanks, Rachel, now you can go home for the rest of the episode. Bill walks up with that DOT number, which happens to correspond to a Northwell Petroleum truck currently on the road. Cameron figures Kosar's plan is to blow up that truck. "No, 'cause we're gonna stop him," Bill says. Good luck with that.
At a service station, Kosar encounters the fuel truck driver in question in the bathroom and zaps the lights. He comes out moments later in the dude's uniform, joining his partner in the cab of the fuel truck. The vehicle's electronics are all down thanks to Kosar's little trick, which gives Kosar time to stress at his big doofy partner about the explosives being in place and being careful with the big, clunky digital detonator currently reading 59-something. After a minute everything comes back on, so they're able to drive off, giving us a nice, clear look at the bomb strapped to the back of the truck's undercarriage. That should definitely discourage tailgaters, if nothing else.