Popular graphic novelist Neil Gaiman (Sandman
) and comedian Lenny Henry
take viewers on a fantasy tour of London’s other underground the one located far below the subway tracks and stations. Good Samaritan Richard Mayhew (Gary Bakewell) takes pity on an injured woman oddly named Door (Laura Fraser), and brings her home to his apartment. Nothing in his life as an accountant in "London Above" prepares him for "London Below" or the cutthroats pursuing Door. Mercenaries Mr. Croup (Hywel Bennet) and Mr. Vandermaar (Clive Russell) murdered Lady Door's aristocratic family to prevent the union of all the underground kingdoms, and their current assignment is to...