This documentary features never-before-seen archival footage and interviews with some of today's most respected rock artists, such as Billy Corgan, Taylor Hawkins, Trent Reznor, Sebastian Bach, Kirk Hammett and Gene Simmons. The film explores the forty-year career and phenomenon behind what could be the world's biggest cult band. Directors Scot McFadyen and Sam Dunn embark on a comprehensive exploration of this extraordinary power trio, from their early days in Toronto, through each of their landmark albums, to the present day.