On a winter's day, Chris Gardner set off with his nine-year-old granddaughter Brooke to find the harmonica of her dreams. The search sends them North "beyond the wall" into a foreboding Chicago neighborhood and, soon, on a harrowing adventure that will change both of their lives-and ours.As the two wind through a changing cityscape, Chris reflects on past lessons that offer powerful guidance for dreaming your way to monumental success.