When twelve-year-old genius cartographer T.S. Spivet receives an unexpected phone call from the Smithsonian announcing he has won the prestigious Baird Award, life as normal - if you consider mapping family dinner table conversation normal - is interrupted and a wild cross-country adventure begins, taking T.S. from his family ranch just north of Divide, Montana, to the museum's hallowed halls. T.S. sets out alone, leaving before dawn with a plan to hop a freight train and hobo east. Once aboard, his adventures step into high gear and he meticulously maps, charts, and illustrates his exploits, documenting mythical wormholes in the Midwest, the urban phenomenon of "rims," and the pleasures of McDonald's, among other things. We come to see the world through T.S.'s eyes and in his thorough investigation of the outside world he also reveals himself. As he travels away from the ranch and his family we learn how the journey also brings him closer to home. A secret family history found within his luggage tells the story of T.S.'s ancestors and their long-ago passage west, offering profound insight into the family he left behind and his role within it. As T.S. reads he discovers the sometimes shadowy boundary between fact and fiction and realizes that, for all his analytical rigor, the world around him is a mystery.