One of the most polluted places in the world is located at the heart of the Niger Delta where decades of oil exploitation have ravaged the native flora. Fringing the delta of the Niger River, local mangrove forests are essential to biodiversity and the survival of local communities. In Nigeria, scientists, activists and lawyers are joining forces to protect and restore this ecosystem. Judith Rueff and Moïse Gomis immersed themselves in the daily lives of these men and women who refuse to give in to the catastrophe. A production by Factstory, Arte G.E.I.E. and FRANCE 24.