Filmed in 15 countries and both hemispheres, One Water explores the global fresh water crisis and looks at one of the world's greatest challenges. From women walking miles in the desert with jugs balanced on their heads, to water rituals and an ice farmer in Ecuador, water represents life and vitality and is an essential human need, one that people will do anything to get. This fundamental right to fresh, safe water is under threat, aggravated by population growth and climate change.