In the darkness of a moonless night, the ghost cat creeps across the U.S.–Mexico border and through a farmer's field just as a small child wanders into its path. Not far away, Sonya Morales, a border agent, struggles to escape from her drug cartel kidnappers. In Tucson, Arizona, confronted by crisis in their own world—climate scientists, politicians and residents face the biggest challenge man can encounter—no water, anywhere. In the city’s barrios, families and community leaders band together as they face unbearable heat and the crushing weight of the gangs that intimidate them. Amidst the turmoil, three teens navigate adolescence to become leaders in a new world. With shifting sand underfoot, characters follow their intuition and learn new skills as they chart a way into a viable future. ‘Threshold’ will make you think while it celebrates the enduring nature of communities as they search for what is lasting and true.