Miriam and Alan continue their motorhome adventure to rediscover their Scottish roots. Alan reveals he is on the hunt for a home to retire to as a showbiz recluse, but he is put off by the midges, so while he does a spot of house-hunting, Miriam goes all scientific to find a repellent for his tiny problem. The duo also record a song in the Gaelic language, with Miriam trying - and failing - to provide the percussion, take part in the Glencoe uphill mountain race and meet a pagan witch, who involves them in an ancient healing ritual.