Broyles tells her again to sit down. Slowly, she does, and then pleadingly asks Broyles if he honestly thinks she's been dosing Olivia with Cortexiphan or if she could have had anything to do with her disappearance. Broyles says he wants to believe her, so if she cares about Olivia, she'll co-operate. "The more you tell me, the sooner I can find her, and the better it'll be for you," he says, which starts to make Nina a little angry. She snaps that she has told them everything she knows and she should be coordinating Massive Dynamic resources in the search, not sitting in a cell. That's when Lincoln walks in, carrying a file that he gives to Broyles. He has a look at it, and asks when the last time was that she was in Massive Dynamic's deep-containment facility. She says it was yesterday afternoon with Agent Lee, but other than that hasn't been there for years.
Broyles shows her that the logs indicate she accessed the storage facility twice in the last three months. She looks at the logs, and says they must have been tampered with. Lee, though, says there are eyewitnesses to her being there, and they have signed affidavits from her own security people.
Nina's the first one to bring up the shapeshifters, and Broyles says, "If a shapeshifter was responsible, then you'd be dead." You know, weren't you recently at war with a universe in which everyone has a doppelgĂ¤nger? Is that a possibility? Nina figures that they've already convicted her and decides to lawyer up. Broyles is all, "Have it your way." Of course, there's more to Broyles than anyone else knows yet, but I'm still left wondering, not for the first time, if Nina and Broyles ever had any booty calls in this timeline. He and Lincoln leave.
Over in the Harvard lab, Walter's buttering bread and then showering it with sprinkles, which... doesn't actually seem too bad. Meanwhile, Peter is going over the video pulled from the chip, explaining to Astrid that the camera records over itself every sixty minutes, burying the older images under new footage, so he hopes the machine is going to give them a chance to reproduce the older images. They're looking at grainy footage on the computer screen with spots on it, like this is a canvas that's been painted over or something, and they're scraping off the top layer, which seems rather ridiculous. Walter is both being pessimistic about their chances of finding anything while also blaming Peter (and himself) for letting Olivia out of the lab -- again, what with Olivia not being a GROWN WOMAN who wouldn't have told them to get bent if they'd even tried. At any rate, Walter still blames Peter more than he blames himself. "I warned you not to succumb to temptation, Peter. Whatever consciousness Olivia appears to be manifesting now, she is not who you think she is." Walter grumbles that if they'd kept her there, then she wouldn't have been taken. Yeah, because your Harvard lab is such a high-security safe zone. He says they're fishing in the dark -- Walter being a big Nitty Gritty Dirt Band fan -- and pinning their hopes on a "palimpsest." Astrid -- despite being the amazing linguist that we've been told she is -- asks what a palimpsest is, and Walter explains that it's a manuscript page from which the text has been scraped off so it can be used again. "Like when you rerecord over an old VHS or cassette," says Astrid -- like HOW MANY OLD PEOPLE DOES FOX THINK ARE WATCHING THIS SHOW -- and we all get what Peter is doing here, and despite it being nonsense, Peter says he's "getting something" and he just needs to "increase the magnetic contrast," because of course he's a genius at WHATEVER THIS IS TOO. Despite Walter's skepticism, he lets himself get caught up in the need for more magnetic contrast or whatever. And Peter uses his +10 knob of magical magnetic contrast enhancement and manages to tease out a ghostly image of Olivia in her own apartment. Success! Now you've confirmed that Olivia lived in her apartment!