With 30 football fields of forest lost each minute in the world, we need to know now if we can save nature. This is the story of one conservation project, Restorasi Ekosistem Riau (RER). After decades of land-clearing and burning across Sumatra, the remote Kampar Peninsula is now the last great peatland rainforest on the island. But protecting this vast ecosystem pushes the RER team to the limits