San Francisco has long enjoyed a reputation as the counterculture capital of America, attracting bohemians, mavericks, progressives and activists. With the onset of the digital gold rush, young members of the tech elite are flocking to the West Coast to make their fortunes, and this new wealth is forcing San Francisco to reinvent itself. But as tech innovations lead America into the golden age of digital supremacy, is it changing the heart and soul of their adopted city?

• Documentary