Written on Water is a documentary film, a modern tale of a dry West that can easily wither dreams. Against the immense, harsh landscape of the High Plains, innovators in places like Olton, Texas, fight to keep their beloved towns alive. Here and in other communities sharing the Ogallala Aquifer, the reality of groundwater decline is colliding with a legacy of independence and self-reliance. Written on Water chronicles life among farmers battling the elements and sometimes fighting attempts to restrict water use. Since the 1930s, the Ogallala has enabled them to remake the High Plains into a fertile dreamscape—but now the fate of a life-giving aquifer is tearing apart communities it nurtured into life.