Voir sur FrenchStream. The young conductor John Warner (27) and the musicians of Orchestra for the Earth are going to Austria, searching for the deeper meaning of the magical Gustav Mahler composition "Das Lied von der Erde". They refuse to take an aeroplane, since its CO2 emissions are too high, which contributes to Climate Change. Therefore, they travel by train. The Orchestra for the Earth wants to draw attention to the theme of Climate Change with their music.