Matt Baker heads to the New Forest to find out what commoners are doing to safeguard their ancient way of life and to meet the team of marine archaeologists unearthing hidden treasures. John Craven investigates whether food shortages mean it is time to think again about legalising genetic modification and, down on the farm, Adam Henson makes hay while the sun shines. Plus Katie Knapman reveals the reasons behind her life-long love of the Hebridean island of Tiree.