The Story of Grasslands National Park explores one of the largest remaining areas of undisturbed mixed-grass prairie in Canada, spanning more than 700 square kilometres near Val Marie in southwest Saskatchewan. Through the history of this remarkable landscape, the documentary examines how the prairie has sustained and shaped the different peoples and cultures who have lived there, while tracing the decades-long effort to protect it. At its heart is the story of how an unlikely dream—the creation of a national park dedicated to preserving Canada’s native prairie—ultimately became a reality.