The London Underground handles over four million passengers every day. Half the population of a multicultural capital scurry beneath the city to travel together. Each carriage is inhabited by cross sections of society; countless combinations of class, race, and opinion meet in a space in which you can barely whisper.  A chorus of nine become hundreds of passengers from all walks of life.  Using spoken word poetry, they create the tones, mechanisms and inhabitants of the tube as they journey through the veins of the city.