The Tube is the world's oldest underground railway system, with its own unwritten rules of behaviour and protocol. This Arena begins 150 years ago in a Victorian London of slums and gaslight, and takes the viewer on a thrilling and mysterious adventure through Tube history. Using the voices of passengers and Tube staff, the programme is nothing less than a celebration of a parallel universe, underground. The film has been produced for Arena by Lone Star productions in association with London's Transport Museum.