In August 1969, over 400,000 people from all walks of life converged on a small dairy farm in upstate New York to hear a pop concert. However, most experienced something far more profound - a moment that came to define a cultural revolution. Through the voices of those who were there, the music of the time and unique imagery shot in situ of the protagonists and festivalgoers, this documentary tells the story of the lead up to those three historic days, and those extraordinary moments when the concert, almost pulled off right at the last minute, put the ideals of the counterculture to the test