AC/DC is a hard rock band, formed in Sydney, Australia in 1973 by brothers Angus and Malcolm Young. The group is considered to be a pioneer of hard rock and heavy metal music along with Led Zeppelin, Deep Purple and Black Sabbath, but the members refer to their music as "rock 'n roll." More than three decades into a career that shows no signs of slowing down or letting up, AC/DC, like electricity itself, provides the world with an essential source of power and energy. Since forming in 1973, AC/DC's high voltage rock 'n' roll has flowed out into the world via consistently sold-out concert tours and global sales totaling more than 150 million albums and counting. A retrospective featuring a comprehensive and detailed study of this legendary band in the crucial years when Bon Scott was in the band and AC/DC rose from playing obscure clubs to conquering the world. For many fans Bon was a legendary front man without equal and his leather-lunged power was the key to a host of classic hits from Whole Lotta Rosie to Let There Be Rock. Featuring rare footage, this film draws together a team of leading critics and working musicians to review the legacy of one of the greatest frontmen in rock.