Back at Massive Dynamic, Brandon's being questioned but he seems to have got his groove back. He's asked if he's ever killed a shapeshifter. "No. I've been going to the gym, though. I'm kind of stoked you'd think I'd have that kind of strength," he says, adding that they can keep asking him questions but the machine's not going to give them a different answer, because he didn't do it. Nina, watching the monitor, says he's right; the machine says he's telling the truth.
So back at the lab, Olivia tells Astrid that Brandon passed the magical infallible lie-detector, and now she's here to help her go through the files. Astrid hesitates, and Olivia has to explain that she knows why nobody wants her to read the files -- i.e. Fauxlivia-Peter sexytime -- but given that they're trying to SAVE A UNIVERSE, she can probably pitch in. "If we can find the next target and surveil him, maybe we can catch this guy," she says. Astrid says she's been through the stack already, but Olivia points out she's a fresh set of eyes. And not just any set of eyes, but Fauxlivia's own: "We're the same, the other Olivia and me. I should be able to think the same way. So maybe I'm gonna be able to find a pattern." Astrid nods, and Olivia gets to work.
So Walter's at home, apparently still reeling from the effects of the chimp DNA, as he is making himself a banana split, one that appears to involve one part banana for ten parts whipped cream, cherries, chocolate syrup, caramel -- and he manages to get a fair amount of whipped cream all over his face and shirt. The phone rings. It's Nina. "Nina! I was just thinking about you!" says Walter, then he licks the whipped cream off his finger because of course he does. He tells her that the first sample is definitely chimpanzee, and she's already forgotten the ridiculous DNA subplot, and anyway she's calling for Peter. "He's not with you? Has he finished the tests already?" asks Walter, and Nina is all, "What tests?" and explains that she wants to schedule a round of tests.
Walter's confused at first, and then looks like a terrible dread has overtaken him, one that cannot be cured by the biggest banana split in the entire world. He goes up to Peter's room. Well, there's your first clue. Peter apparently went to a kiosk in the mall that sells novelty signs, because he's put up a "Shapeshifter Assassin Parking Only" sign up on his door. Walter goes into Peter's bedroom, where he finds printouts of lists of names, all helpfully laid out on his desk, with the names of shapeshifters circled. Walter, looking hopelessly sad, turns and looks at the childhood pictures of Peter up on the wall. Peter still has those up?