With access to 20,000 transport workers - bus drivers, cabbies, road menders and special police units - we see how London really works. London life consists of 23 million journeys a day. This warm, character-driven series introduces us to those whose job it is to keep the city moving. We cut between the all-seeing eye of the control room and seemingly incompatible transport sub-cultures - from cabbies who resent the ever-increasing number of cyclists, to hard-working surface repair teams who face nightly abuse from drivers stuck in rush-hour gridlock. Seeing the city through the eyes of those responsible for vital maintenance and traffic regulation is a revelation. That this overcrowded city's roads work as well as they do is more than impressive, it's an everyday miracle!