But they're going to HAVE to get in, points out Olivia, and Peter says they're going to need a Faraday cage (not the first time we've seen that on this show), something that's mobile and can block out the electromagnetic field. Walter sneers as he hears Peter talking, and gets all pissed with Olivia when she says they'll need a Faraday cage and he's insulted because of COURSE he knows what a Faraday cage is: "A baboon would!" he yells, slamming down the phone. I guess that means I wasn't even as smart as a baboon before I saw the first Fringe episode that mentioned one.
He stomps off, angry, but he is going to rustle up a cage; he barks orders at Astrid as to what he needs to make it: a car battery, copper wire, rubber cement among the components (that last one can be found in his Spider-Man fanny pack, he tells her, with the most dignity any actor could ever muster for that line).
Back at the House of Lost Time, Broyles is more concerned about whether they can predict the next "residual event" and Lincoln suggests using Walter's spiral, and I hope Fibonacci isn't too annoyed about having his spiral renamed. Lincoln and Peter go off to find a map.
Inside, Raymond and Kate are back upstairs, and Kate has seen the growing law-enforcement contingent outside, and she tells Raymond that he needs to shut the thing off. "You don't know what can happen!" says Raymond, urgently -- and trying not to have to say why he needs her to shut it off. "Some things are supposed to remain theories. It wasn't meant to be built," she says, but he won't budge, and she yells for him to tell her why he did this, and he yells back that they don't have time. And Kate's a theoretical physicist, meaning she's no dummy, and she susses out that something must have gone wrong. "Did something happen to me?"
Raymond has a hard time answering, and finally whispers, "I lost you, Kate. I lost you."
Outside, we get a little more answers from Broyles, with info on the owners, Raymond and Kate Green. "Raymond is an electrical engineer. Kate, professor emeritus of theoretical physics at Boston University," he says. Theoretical physics, that makes sense, says Olivia. It's always so cute on this show when someone says that something "makes sense." Broyles also says Kate retired three years ago due to early-onset Alzheimer's.
But there's another problem: Peter's figured out where the next incident is going to be (and after Walter pointed out the spiral, you really wish someone would have thought to plot this out sooner) in the Melville Tunnel, which didn't exist four years ago.