Each episode of Extreme Engineering tells the story of a large-scale pioneering 21st century construction project. Building a new bridge or skyscraper, a tanker or a fighter jet involves ambitious designs, vast amounts on money, and fraught tempers, as engineers, builders and architects attempt to deliver to the clients what they want, on time and to budget. The story and dramatic action of Extreme Engineering arises from the project itself - an engineering dream awaiting realisation; the characters are the architects, the engineers and the builders whose job it is to deliver.