Dougie heads into the dark to find out about night-time hill navigation, Joyce explores the problematic issue of sexism in farming, Euan finds out about the history of slate at Ballachulish, while Anne finds out about how the problem numbers of feral cats are being tackled. And Gary Maclean continues his journey on Mull and this week teaches his students all about haggis by the new Aberdeen bypass are being rehoused. Plus chef Gary Maclean travels to Mull to witness a deer stalk and then shows his students how to cook venison