On the last leg of their road trip, Roo Irvine and Mark Hill explore Roo's home turf of Scotland in search of items able to make the greater profit at auction. Drawing on all his expertise, Mark takes a gamble on some glassware, while Roo rummages for Caledonian treasures. They squeeze in a pit stop at St Andrews to learn about women's lacrosse legend Louisa Lumsden, with a lesson that leads to larks on the pitch. Then it's off to the final showdown in the saleroom