Boe, 22 didn’t always plan to become a taxi driver but when life took an unexpected turn she found herself following in the family tradition. The Knowledge of London is the most challenging taxi examination in the world. With 320 routes and 20,000 landmarks to memorise, The Knowledge boys and girls are required to have an encyclopedic knowledge of the streets of London.  As Boe approaches the last leg of her Knowledge journey we hear about the grit and determination it takes to become a true London black cab driver and the lengths a father will go to to support his daughter.