In the summer of 1969, on a farm about 90 miles north of New York City, over 500 thousand people gathered for a 3 days music festival that, in an instant, defined a generation – and changed popular culture forever. In 2009, Barbara Kopple seeks out the performers, the audience members who took part in the festival and the film crew who created a piece of work that would go down in music documentary history to reminisce in commemoration of the 40th anniversary of the Woodstock. Footage of the Woodstock and unforgettable episodes as well as the memories and flashbacks of values that youngsters aspired to at the time are laid out through the sharp observations of Barbara Kopple.