The world’s largest water crossing project, the Nan Shui Bei Diao, is the core of this film that crosses China from south to north like travelling across an enormous open wound. An epic film that alternates the interview with observation, the tense camera sequences in which government delegates intimidate the protestors, with untypical images of the result of a geographical transformation that tends towards megalomania: cement creates a landscape of science fiction that leaves green in the memory, taking rivers to invented courses and turns deserts into beautiful forests. The filmmaker wonders about the implications of the colossal project for the inhabitants, whilst its course is taken back to the conflictive epicentre in Tibet.