Police close in on an organised crime gang targeting farms across northern England and stealing high-tech GPS systems. After months of painstaking detective work, a high stakes sting operation is launched to bring the thieves to justice. In Leicestershire, a huge barn fire devastates a family run dairy farm, threatening cattle and destroying winter feed. In Scotland, reporter Paul Colgan meets farmer Debbie Duffus, as she is reunited with the air ambulance team who saved her life