In this episode, the fields are bright yellow in Easter Ross as Dougie meets the farmer producing Scotland's most northerly oilseed rape oil. Rosie is in the Angus glens finding out about one estate's efforts to save the curlew, discovering how land managed for grouse has been beneficial for the wader population and has led to a spectacular rise in numbers.Arlene is near Killin, in Perthshire, stepping back in time inside a traditional longhouse. She discovers what layers of lost wallpaper reveal about its history. And Nick encounters traditional Shetland beef product Sassermaet, bringing some along to his St Ninian's beach alfresco kitchen for Dougie to try, as they make tasty chargrilled beef skewers with tomato salsa.