For Remembrance Sunday, Ellie Harrison visits the National Memorial Arboretum in Staffordshire to help the Royal British Legion mark their centenary and to explore the diverse ways nature can offer healing and recovery. She also treks with llamas and discovers how an old pair of jeans are key to converting old Second World War pillboxes into new des res for bats. Adam Henson discovers why military veterans are armed with just the right skills to be the farmers of tomorrow, and Charlotte Smith investigates the true cost of protecting the countryside's most historic landmarks and landscapes.