Watch Online Free on Watchseries. Documentary that tells the history of hip-hop and rap music by starting at the source: the streets. Filmmakers interview denizens of Harlem and South Central Los Angeles, who know all too well that the musical genre is much more than just a record industry moneymaker; it's poetry that tells the truth about a hard-knocks life. Features performances by undiscovered musicians who can rhyme with the best of rappers.