Crossing Continents

Two and a half years ago, oil started flowing from Ghana's first commercial offshore oilfield. Shortly after the taps were turned on, Rob Walker visited the hub for the new industry: the once sleepy port of Takoradi. He found a mixture of ambition and uncertainty in a rapidly expanding boomtown. Rob now returns to Takoradi to meet people he met last time and find out whether their dreams have been realised. Producer: Katharine Hodgson.