This landmark documentary presents a harrowing portrait of the ill-fated Rolling Stones performance at Altamont Speedway in northern California on December 6, 1969. Before an estimated crowd of 300,000 people, the Stones headlined a free concert featuring Tina Turner and the Jefferson Airplane, among others. Concerned about security, the Stones asked members of the Hell's Angels to help maintain order. What began as a flower-power love-in would degenerate into a near riot of frightened, confused young people as the Love Generation, in one swift, cold-blooded clash, became a generation of disillusionment and disappointment.