A return visit to the gardens of Arley Hall in Cheshire finds Fiona Bruce and the team of experts hard at work. It's a rich day of finds as family treasures come under scrutiny. Amongst the objects featured are a portrait of a visitor's mother which was painted in India in the 1950s and identified by Asian art specialist Amin Jaffer as a superb example of a now highly collected artist whose work commands high prices today. There's a poignant diary hidden from Japanese guards by a prisoner of war whilst building the bridge over the River Kwai. And diamonds and emeralds once worn by a duchess deliver a final flourish as expert John Benjamin gets excited by their quality and sparkle.