The documentary examines the 1969 Harlem Cultural Festival, which was held at Mount Morris Park (now Marcus Garvey Park) in Harlem and lasted for six weeks. Despite having a large attendance and performers such as Stevie Wonder, Mahalia Jackson, Nina Simone, The 5th Dimension, The Staple Singers, Gladys Knight & the Pips, and Sly and the Family Stone, the festival was seen as obscure in pop culture, something that the documentarians investigate