The Pine Ridge Reservation in South Dakota is home to the Oglala Lakota, a Sioux people with one of the most fascinating, controversial, and difficult histories ever told. From the infamous Wounded Knee Massacre of 1890, in which at least 150 of their people were killed, to a present-day unemployment rate of 80 per cent, the residents of Pine Ridge have many stories that have yet to be told. Beautifully filmed under big skies, Language of the Unheard offers an original and eloquent testament to the prospect faced by a First Nations people.