German journalist Philip Winter has a case of writer’s block when trying to write an article about the United States. He decides to return to Germany, and while trying to book a flight, encounters a German woman and her nine year old daughter Alice doing the same. The three become friends (almost out of necessity) and while the mother asks Winter to mind Alice temporarily, it quickly becomes apparent that Alice will be his responsibility for longer than he expected.

During the last forty years, the photographer Sebastião Salgado has been travelling through the continents, in the footsteps of an ever-changing humanity. He has witnessed the major events of our recent history: international conflicts, starvations and exodus… He is now embarking on the discovery of pristine territories, of the wild fauna and flora, of grandiose landscapes: a huge photographic project which is a tribute to the planet's beauty. Salgado's life and work are revealed to us by his son, Juliano, who went with him during his last journeys, and by Wim Wenders, a photographer himself.