Juanjo, Mario and Lucía go into a Qom community in the middle of the Impenetrable Chaqueño to make a television program that portrays the misery and desolation in which they live and how this affects their daily life. Upon arrival they discover that the Qom community has mysteriously disappeared. Lost, without food and water, they must find their way out of the mountain before the terrifying secrets that the Impenetrable hides trap them.
