In the series premiere, he orchestrated the most sensational murders of the 20th century, but how much do we really know about Charles Manson and the Family? Helter Skelter goes back to the 1960s to reveal the untold story of the enigmatic cult leader and his band of followers who did his bidding – even when it meant killing nine people in the summer of 1969. His story has become legend, but the truth has yet to be told...