Fiona Bruce and the experts head to the banks of the Cyde to meet visitors bringing family heirlooms to the 18th-century cotton mill of New Lanark. As evidence that you should never throw anything out,treasures featured include a pearl necklace bought cheaply at a boot sale, a valuable clock found in a flea market, and a rare cuddly toy found abandoned in a skip. Plus there is a moment of disquiet when a guest reveals how a family painting is a reminder of an uncomfortable family secret that dates back to the days of Nazi Germany.