Back in Castle, Robin Givens tells Chuck the pig means Lewis is still out there, and she's only got Chuck for backup. So she's heading to the bomb-proof Intersect room, the safest place in Castle. Chuck follows her, ineffectively commanding her to stop. They arrive at the Intersect room and bicker. Until Chuck sees his sister looking at the computer on a surveillance video, and then he really gets mad. As they yell at each other, they both finally stop because they see Lewis in a seat above the room. They tell him they've got him and there's no place to go as they lower him down from this weird ceiling seat. He's dead. Chuck says it's safe to say Lewis isn't the killer. Robin Givens: "Brilliant deduction, Sherlock."
Kevin Bacon continues to roam above them in the ducts, as Chuck tells Sarah and Casey how grisly Lewis's body was. They figure they better finish this. When they find the rest of the group, though, Jody and Robin Givens have their guns trained on each other, each one saying that since she know it's not herself, it has to be the other. Casey tells them to put their weapons down, so they draw their guns on Sarah and Casey, in case it's them. Robin Givens asks Chuck, condescendingly, who the killer is, since he's the leader. Chuck flashes back, in black and white, on what might have happened. When he's done, he says he knows who did it. He explains: At first he thought his second choice would want to kill his first choice (Jody, weeping: "So I'm not your first choice or your second choice?"), but they're both dead now. He says he did suspect Jody for awhile because of her volatile emotional state. But he says he found her pregnancy test in her things; she's expecting. He says that brings him to where his suspicions have been pointing this whole time. Robin Givens tells him he must be joking, as they all close in around her. Chuck says that only one person was unaccounted for during both murders, and she has unique access to Castle's infrastructure. Robin Givens tells him to be careful. Chuck whispers that he knows it isn't her. Casey's like, "What?" Chuck says she had ample opportunity to kill him and didn't; he just wanted everyone to move in on her because it got them away from the real killer: Damian, who's probably armed. They all say they've got Chuck's back, but Damian stands up and says he'd like to go with Plan B.