The first film to tell the true story of the origins of graffiti and hip-hop features exclusive interviews with New York's legendary spray-paint pioneers and today's leading artists from Europe and the US. Youths in neglected neighborhoods revolutionized the subway system by spray-painting colorful signatures that travelled downtown, uptown and ultimately worldwide. Up against cops, the media and the art-world, a global community of elusive artists continues to re-claim their urban environment