An investigation into the socioenvironmental impacts caused by the construction of six hydroelectric dams on the Teles Pires river in Brazil's Mato Grosso state. Although one of the main tributaries of the Tapajós river, the dams were built without a strategic environmental evaluation. Deforestation, greenhouse gas emissions, and polluted water are just some of the consequences. Journalist Juliana Arini revisits individuals she interviewed in 2016, comparing their narratives of life today with their situation before the dams were built.