Over at the building, Peter Simmons, the building engineer introduces himself. His name's Peter too? Oh, come on! There's only like five main characters, and one of them is already named Peter! So for the sake of recapping ease, I'm renaming the engineer "Zeke." Zeke says the elevator just powered itself into the floor: "I've never seen anything like it," he says. Peter asks if the brakes didn't come on. Sure did, and the motor just kept on going, says Zeke, almost melting the brake shoes, which is technically... "...impossible?" finishes Peter. "You know your elevators," says Zeke, which Peter credits to being an MIT dropout, whatever THAT'S supposed to mean.
Olivia asks about the security camera footage, and Zeke says all the cameras were fritzed. Zeke clears out the crews working around the disaster area, because the FBI are coming through. Shouldn't there be some city cops there who don't want to give up the case and are pissed that the feds have shown up? Some Sipowicz looking guy to make jerk-off motions while the feds investigate? Zeke says it was almost as if another generator came on line and jacked into the system, overpowering it.
Meanwhile, Walter's examining the bodies and finding exit wound burns and subconjunctival hemorrhages. "Thermoelectic trauma," says Peter, and translates for Olivia that all of the victims were electrocuted.
Walter asks for the gold medallion hanging around Olivia's neck, like maybe he's going to do a magic trick. In a way, he does, because he holds the medallion's chain in the air, and then slowly lowers the necklace, while the pendant remains suspended in mid-air as everyone watches in awe. "This entire space is charged with electromagnetic energy far beyond that which occurs in nature, and there's still residual magnetic energy from whatever electrocuted these people." He says he needs to examine the victims' belongings, and one of the bodies. "Are you saying you know what happened?" asks Olivia, sounding surprised, although that's kind of the POINT OF HAVING WALTER ON THE TEAM, is it not? He's not sure yet, but everyone can put five bucks on Walter having some experiential knowledge that proves crucial...
Sure enough, back at the lab, Walter, removing the heart from a body, says he was involved in a project in which the government wanted to know if a human being was trackable by homing pigeons. Peter wants to know what possible use that could be, and Walter says, "I'm sure it had something to do with the Commies. It always did back then." Their theory was that human beings are merely highly complex electrical systems, and everyone has a unique electromagnetic signature, which pigeons should be able to home in on, in precisely the same way they know how to fly south for the winter. "But the human field was too weak, so we tried to augment it to make it strong enough for the birds to detect." It worked, but there were these eensy-weensy troubling side effects. Like every time one woman hiccupped, the lights would dim. No one could control electrical devices deliberately, but it at least seemed theoretically possible. Yeah, in the way that saying a bunch of science stuff to viewers who don't know any better makes anything sound plausible, right?
Meanwhile, the excised heart starts beating on its little steel tray, freaking everyone out but Walter, who's satisfied that this confirms his theory that someone has pursued this science a little further, and it's the residual electromagnetism of this highly charged person that's causing the heart to pump, and it's this person who electrocuted everyone in the elevator. "It was a human being," says Walter.
That human being, looking a little worse for wear, is returning to work, where a co-worker is watching a news item about the elevator failure. The co-worker lets Joseph know that the boss is looking for him, and Joseph drifts off. He finds Mr. Boynton, who's working on some machine in the back, but he's not so busy that he can't chew Joseph out for being AWOL. "I've had a really hard day," stammers Joseph. "Your day's fantastic, compared to mine," says Boynton, who then notices a red stain on Joseph's shirt. Joseph doesn't know what it is. "You know what? I'll make it easy. It's not your uniform anymore," says Boynton. Sweet! New uniform! Oh, that's not what he means. Joseph is fired. That's much worse! Joseph pleads that he takes care of his mother, which earns no sympathy from Boynton, who supports a wife and family by employing smart, reliable and capable people. "And you are none of those things," he snaps. He orders Joseph to get lost. "Now, if you don't mind, I'm going back to work on this huge piece of industrial machinery, but I will continue to yell at you and stress you out." A frantic Joseph stares after Boynton, who immediately gets his arm caught in a ... thing ... that ... well, I don't know what this is or what it does, but his arm is bloody and he's yelling. The other co-workers scramble to free Boynton while Joseph stands there and blubbers.
Back at the federal building, it's a by-now standard scene of Olivia being the only federal agent working late. Except for Broyles, who shows up with some coffee for her and asks what she's reading: Neural Distortions in Human Subjects, she says, surreptitiously sliding the Mary Higgins Clark into a desk drawer. She fills him in on Walter's theory about Electro-man frying the elevator victims: "He thinks this person was altered in some way. Extensive procedures. Chemical therapy." Broyles looks thoughtful, and then tells her about their Pattern investigations turning up a handful of "off-the-grid" clinics that solicited clients with weight-loss or hair-growth claims, only that wasn't what they were really offering. He tells her about Jacob Fischer, wanted in three countries for illegal human experimentation on unwitting guinea pigs, including one poor bastard who was pumped full of stimulants, kept awake for a year and shown a steady stream of horrific images. On the bright side, that person went on to create the Saw franchise. Broyles says he'll transfer the files to Olivia's computer, but it's not easy stuff to look at. Olivia thinks back to when John Scott told her about "2 Girls 1 Cup" and figures this can't be that bad.
Later, she's looking at the Jacob Fischer files when the lights go out, which means she's going to get her flashlight and wander around the federal building that seems to have absolutely no security despite all these classified cases they investigate.
Now, if the power's out, and the elevator dings, what should you do? Call security or check it out? Olivia opts for the latter, and is surprised to see John step off the elevator. He's still very handsome, especially when you consider how dead he's supposed to be.
"It's just me," he says. "I know this doesn't make any sense to you, and even if it did I know you don't have any reason to trust me but that's what I'm asking you to do. We don't have much time. I'm here to help." She points out that he tried to kill her. God, try to kill a woman one time and she never lets you forget it! He says he didn't, and that he loved her, and he's going to prove it to her. But not now, because that's not the way it works, he tells her, but says she's on the right track, and needs to get to him before Jacob Fischer does and uses him. And he's up and walking away. Olivia, after a moment, gets up and says, "Use him for what?" John's gone around the corner and is standing in the elevator. She asks him again about Fischer, but John just says he'l