For many gardeners, the beginning of September is the start of a new season. Monty Don embraces this shift as he harvests an abundance of delicious produce at the same time as looking ahead to the spring. Carol Klein continues to explore the wonders of the fauna visiting our gardens and travels to Shaftesbury to meet wildlife enthusiast Brigit Strawbridge. Together, they explore the nooks and crannies in her tiny garden to find out what wonderful creatures dwell in these hidden places. And we visit a hospital in Salisbury where a very special garden, designed by Cleve West, is helping spinal-injury patients on their difficult road to recovery.