In this programme, the sisters make their way across the Vatersay causeway to Barra, cycling north with a stop for lunch at Barra airport on Tràigh Mhòr. A ferry ride takes them to Eriskay, where family and friends accompany them home to South Uist. Rain and high winds set in as they cycle through South Uist on machair tracks and corn fields before tackling the steep ascent of Aisgerbheinn. In North Uist, they discover white beaches and catch a glimpse of the Monach Isles before crossing over to the tidal island of Vallay. Their final stop is Berneray at a converted black house turned hostel.