Dougie and Arlene continue their journey along the scenic South West 300 driving route in an electric car. Euan discovers a treasure trove of old photographs that were found at Lanark Mart. Anne finds out how our ancestors farmed in the wild north west, and we visit the nature reserve carved out of the sea.

Dougie sees the nation from a completely different perspective when he visits the great Polish map of Scotland, Arlene finds out about the menace of 'nurdles', which endanger marine life, and Euan finds out how badgers displaced 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.