It's one of the most important and difficult questions of our time... can the human race find a way to co-exist with the natural world before we destroy it? With thirty football fields of forest lost each minute, the world needs answers now more than ever, and sometimes the most innovative solutions can come from unexpected places. Frontier Sumatra is the incredible story of a ground-breaking conservation project called Restorasi Ekosistem Riau (RER). After decades of land clearing and burning across Sumatra, the remote Kampar Peninsula is home to the last great peatland rainforest on the island. Roughly the size of London, the RER is home to rare and exotic wildlife, ancient cultures, and carbon-rich peat soil. But protecting this vast and abundant ecosystem pushes the RER team, and their conservation model, to the limits.