Waving the flag that states every film is political, Vincent Carelli visibilizes in this documentary the cause of the Guarani-Kaiowá: a group of indigenous people that fear their lands, located in the Mato Grosso do Sul, will be confiscated by the State. A territorial conflict born more than one hundred years ago, during the Paraguay war. While fighting against the Brazilian Congress in order not to be evicted from their homes, the 50.000 indigenous people demand the demarcation of the space that belongs to them. With some rigorous investigative work, the Brazilian director tells with his own voice of the social and political injustices suffered by the Guarani people through material he filmed over the course of more than forty years. The archive images, both color and black and white, reveal the crudeness with which they coexist every day: among the violation of their civil rights and the guts with which they confront the usurpers.