Andy managerially thanks Pam and Jim for the "list of names," until he learns that it was copied from Robert's notebook and suddenly wants no part of it. Pam tearfully frets that it's a list of people to be fired. It would be pretty empty in there if that were the case. They bring in Dwight, who compares it to his old lists of names for various apocalyptic scenarios. I see Karen's name in there, so he needs to update that shit. Andy speculates that the left side of the list is the cool side, what with it including himself, Jim, Dwight, and Darryl. When Pam starts getting emotional over her absence from that column, Dwight tells her not to be such a "right-sider." Dwight would be a superstar at the Stanford Prison Experiment. When they come out of the office empty-handed, everyone wants Andy to go ahead and ask Robert what it means, which Andy isn't willing to do, because A) he doesn't want Robert to know they've been snooping; and B) he's already got that Columbus Day weekend request thing going on.
But then he goes in anyway and asks Robert, who's a little annoyed that Andy read his notebook, copied it, and distributed it. "No, they did," Andy aw-shuckses. Robert says it's just a doodle, like some people's drawings of houses and penises, only he doodles words and lists. Andy's relieved, until he realizes that Robert's moving his name from the left side to the right side. "Might as well have been sketching a cube," Robert shrugs. Well, Andy is pretty square, but I'm not buying it.
So then Andy has the copied list enlarged on an easel in the bullpen and is asking everyone what it means. Meredith wonders if they're supposed to "do it" with people in their group, or, alternatively, do it with people in the other group. "No, still wrong," Jim says. Stanley suggests a detailed puzzle-based solution that of course ends in "shove it up your butt." Kevin sys it's alphabetical, which it's clearly not. Dwight suggests they all line up in columns matching the columns of the list, and when they've done so, he instructs his fellow left-siders, "Attack!" A melee breaks out until Robert returns and invites a number of (suddenly very subdued) people to lunch. All of the people he invites are, probably not coincidentally, on the left side of the list: Jim, Dwight, Angela, Darryl, Kevin, Toby, Phyllis, and Oscar. And not Andy. The chosen few head out, Jim pausing to comfort his crying wife before leaving her behind. Andy tries to make the best of it by making a musical announcement about a pizza party.