The Tube: Going Underground

Discover the secret army battling to keep the Tube running during the twice-daily onslaught of rush hour. Travelling the equivalent of six times around the world every day, the repair workshops must work round the clock to keep trains on the tracks. At Earls Court station, Charlotte must find a way to keep the Piccadilly Line running despite an epidemic of flat wheels on their trains.

At busy Bank station, customer service assistants Eamon and Ian have perfected their own method for dealing with unexpected problems caused by passengers. They must face an epidemic of customers dropping phones, wallets and Oyster cards on to the tracks. Eamon must bring trains to a halt in order to retrieve passengers belongings but then the train driver drops his keys on to the tracks as well.

The Tube is embarking on a crackdown on fare dodgers to help pay for a massive upgrade of stations and trains. Fare dodging costs the Underground £34 million a year, so revenue inspectors Simon and Paul have their work cut out for them. At Angel station, they face an aggressive passenger who refuses to pay.