In the heart of the Congo Basin, global thirst for steel has driven miners to a vast, remote forest landscape called Tridom (Tri-national Dja-Odzala-Minkébé), which holds one of the largest untapped iron reserves on earth. The film explores the complexity of mining in a region that is home to Baka and Bakola pygmy and Bantu tribes and a haven for gorillas, chimpanzees and elephants. The iron mines promise jobs, infrastructure and new revenues, but can benefits be balanced with impacts?