Heroes of Conservation finalist Ron Kuipers manages 15 experimental chestnut orchards in Maryland, working with The American Chestnut Foundation and the Izaak Walton League of America to develop a blight-resistant American breed of chestnut tree.

On Friday, you’ll be able to watch as Kuipers and Editor-at-large Eddie Nickens assess the health of the American chestnuts in an orchard that’s been exposed to the blight, and find out that one of them has to be cut down.