Wildlife film maker Rebecca Hosking investigates how to transform her family's farm in Devon into a low-energy farm for the future. Last year's high fuel prices were a wake-up call, and realising that food production in the UK is dependent on fossil fuel, particularly oil, Rebecca sets out to discover just how secure this oil supply is. Alarmed by the answers, she explores other ways of farming and learns that it is actually nature that holds the key to farming in a low-energy future.