After the opening credits, which are split between the red and blue ones indicating that we're finally getting the episode that jumps back and forth that we've been waiting for all season, Peter's still sitting in the chair in Fauxlivia's living room but he's being tended to by an EMT while agents mill about. The EMT asks if he has any nausea. He does, and a bit of a headache too. "On a scale of one to ten?" asks the EMT, and Peter says, "Tequila hangover," like just give her a damn number, damn.
Broyles is pissed that Fauxlivia's been there for eight weeks and none of them suspected anything. "Did she give you any indication at all where she was headed? Anything you might have overlooked?" he asks Peter, who can't think of anything. The EMT has taken a blood sample from Peter and she tells Broyles she'll get them to the lab, and Walter wants a sample sent to his lab too, and now that he's the owner of Massive Dynamic he might want to specify which lab he's talking about.
Peter asks if they were able to trace the call that came in to his cellphone, and Broyles says all they know is that it was made from a Manhattan payphone at 12:21 a.m. Payphones still exist? Well, drug deals still have to happen, I suppose. Walter surmises that Olivia was able to cross over momentarily but unable to stay. Peter wants to get over there to get her back, but Walter says that's out of the question, without Olivia's help: "But there may be something I haven't thought of yet," he says, which is usually how episodes work.
Speaking of questions that must be asked, Broyles notes that Peter said the paralytic was administered at 2:15 a.m.: "Now what were you doing here at 2:15 a.m.?" he asks, and Walter starts rather obviously covering for Peter, at least until Peter stops him and admits that "Since we came back from over there, Olivia and I became something more than friends." Broyles seems sincerely surprised, but I can't imagine Mr. Nina-Sharp-Booty-Call is TOO astonished.
"It's perfectly understandable, son," says Walter, who then launches into a potentially very uncomfortable story about wandering into someone else's house "in the '70s" and sharing a bed with a woman who didn't look like his wife at all. Jesus! That'll do, Walter. That'll do. Fortunately, the story of Walter's drug-addled sexcapades are interrupted by Peter realizing that Fauxlivia took the wrong computer with her when she left: "I was searching her computer last night and she caught me, but I convinced her that it was mine," he says, and Broyles orders an agent named Hernandez to get them access to every file on that computer.