Trying to run a business in the heavily regulated national parks of England and Scotland can be difficult, causing the business owners a number of trials and tribulations. This programme, presented by filmmaker Richard Macer, examines the problems those businesses face. Among the stories told are that of Mark Weir, who spent years and thousands of pounds in an attempt to gain planning permission from the National Park Authority for a high-level zip wire in the Honister Slate Mine to turn it into a tourist attraction.