From the day that a 14-year-old Ansel Adams first saw the transcendent beauty of the Yosemite Valley, his life was, in his words, "colored and modulated by the great earth-gesture of the Sierra." Few American photographers have reached a wider audience than Adams, and none has had more impact on how Americans grasp the majesty of their continent. In this elegant, moving and lyrical portrait of the most eloquent and quintessentially American of photographers, producer Ric Burns seeks to explore the meaning and legacy of Adams' life and work. At the heart of the film are the great themes that absorbed Adams throughout his career: the beauty and fragility of "the American earth," the inseparable bond of man and nature, and the moral obligation the present owes to the future.