Critical review of the legendary band from the early days when AC/DC rose from playing obscure clubs, to conquering the world. For many fans, Bon Scott was a legendary front man without equal, and his powerful voice was the key to a host of classic hits from 'Whole Lotta Rosie' to 'Let There Be Rock'. After his tragic death, the virtually unknown Brian Johnson stepped into the breach, and AC/DC came storming back with the classic album 'Back in Black'. Featuring rare footage, this documentary draws together a team of leading critics and working musicians to review the legacy of one of the best rock bands the world has ever seen.