"Waters" highlights inspiring stories from Idaho to Indonesia, focusing on hope in the world's oceans and freshwaters. In Alaska's Bristol Bay, salmon are flourishing thanks to efforts to balance harvesting with protection, creating sustainable livelihoods for people and feeding hungry bears and seals every year. In Raja Ampat, dynamite fishing once threatened marine life, but it is now a Marine Protected Area with unmatched biodiversity and more jobs for local people. In Idaho, a cattle rancher collaborates with an unlikely ally - beavers - to hold water on his drought-stricken land. In Brazil's Pantanal wetlands, ecotourism helps jaguars thrive alongside major cattle ranching operations. And in the Amazon, communities work together to conserve one of the world's largest freshwater fish - the pirarucu - which feeds hundreds of villages.