Everyone's vibe is thrown off when an unwanted outsider tries to join the study group. Meanwhile, Jeff (Joel McHale) becomes the new editor of Greendale's school newspaper and appoints Annie (Alison Brie) as his ace reporter.

Among the guests on Graham's sofa are Sir Elton John, Hollywood stars Ben Stiller, Owen Wilson and Penélope Cruz, and actor and comedian Jack Black.

Ralph Nader goes to war with General Motors, Houdini and Sir Arthur Conan Doyle go from best friends to bitter rivals, and the Kellogg Brothers invent cereal but battle each other. Guest starring Owen Wilson, Alfred Molina, Jason Schwartzman and more.