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Management has decided to crack down on fare dodgers, but it is revenue inspectors Simon and Paul who have to deal with an aggressive passenger refuses to pay at the Angel. At Tottenham Court Road, John is supervising the tricky restoration of Eduardo Paolozzi's famous mosaics. At Walthamstow, the installation of a new escalator is causing bottlenecks. On Poppy Day, Dame Barbara Windsor helps to fund-raise by becoming a Tube driver for the day.

Episode Title: Episode 6
Airs: 2016-04-25 at 21:00