Dougie Vipond heads to Ben Ledi in the Trossachs to help out with some high-altitude fieldwork, while Arlene Stuart revisits Landward's coverage of the 2001 foot-and-mouth outbreak and finds out about a legacy of the crisis that's helping farmers now. Rosie Morton is in Gairloch, Wester Ross, to hunt for herring and find out how this over-exploited fish is making a comeback, while Leanna Fernandez is in Fife to join a team researching the movements of snipe. Cammy Wilson visits an Ayrshire couple determined to preserve and promote the Clydesdale horse