Filmmaker Amina Weira travels to her hometown of Arlit in northern Niger, where she interviews the town's residents about the negative environmental and health consequences of plutonium mining. French mining companies have mined uranium there since 1976. Today the region is contaminated, and large numbers of people have died young and suffer from chronic illnesses. Ms. Wiera's father, a retired uranium mineworker, is at the heart of this film. He shares his memories of 35 years spent in the mines.