Episode 4

Juliet Bremner travels to a small town in North Carolina, to meet troubled ex-soldiers enrolled in a Veteran Treatment court. A year on from the end of Mugabe's reign in Zimbabwe, John Ray returns to see just what has and hasn't change. And Tom Clarke visits 'Nemo's Garden' in Italy, where they're growing crops underwater. Could this be the future of farming in a world growing ever scarce of resources?