From America’s heartland come four unexpected warriors for a hidden but far-reaching conservation movement: a Montana rancher, two Kansas farmers and a Louisiana fisherman. With a passion for the terrain that defines their identity, each has bridged long-standing divides - between rural communities and outside experts, people who work the land and federal bureaucrats - to preserve the landscapes that sustain their livelihoods. Based on Miriam Horn’s Green Prize-winning book, Rancher, Farmer, Fisherman: Conservation Heroes of the American Heartland, this timely documentary is narrated by award-winning journalist Tom Brokaw and was an official selection of the 2017 Sundance Film Festival.