The teams are battling it out in Doune, Perthshire. Natasha Raskin Sharp meets leading tartan historian Peter MacDonald to learn about the origins of the iconic patterned cloth, while experts Roo Irvine and Danny Sebastian are guiding the Reds and the Blues.

The market town of Leominster is the destination for today's show. Guiding the teams around an antiques centre in the Herefordshire town are Kate Bliss and Philip Serrell, but which team will make the biggest profit or the smallest loss at auction? Eric talks to a local author about the rescued photographs of a local farmer.