When the Lambchop family gets to Boston, Stanley is excited to go on a Duck Tour, eat lunch at Quincy Market, and see Fenway Park baseball stadium. Stanley even gets to be in a reenactment of American Colonist Paul Revere's famous midnight ride. But Stanley has a problem. The Lambchops' friend, Dr. Dan, is in town, too, and he's giving a speech about his cure for flatness. And he wants Stanley to talk about being flat! But does Stanley want to change and be a regular kid, or would it be better to stay flat after all?