In this intimate, informal portrait of an artist as a historian, Pulitzer Prize-winning author David McCullough welcomes viewers into his public and private world, exhibiting the infectious curiosity, humor and humanity that have defined his work and life. Director Mark Herzog travels with the celebrated writer as he delivers a speech to rapt legislators; climbs the same Philadelphia church's steeple tower as did John Adams two centuries earlier; returns to the Massachusetts Historical Society to again study an original Adams letter written to his wife Abigail a day before July 4, 1776; visits his old Brooklyn neighborhood and makes his annual trek across the Brooklyn Bridge; sings songs, paints pictures, and reflects on his undiminished enthusiasm for writing while sitting in his tiny "world headquarters" (shed-like though not a shed, he insists) on the grounds of his home. Accompanied in most of these journeys by wife Rosalee (whom he met the summer before college), McCullough provides an insightful, anecdotal look into his life and career, while displaying a refreshing approachability and genuine interest in people he meets along the way.