Bev Bevan explores the origins of heavy metal music and Black Sabbath's homecoming gig, with interviews and music from Black Sabbath, Judas Priest and Slipknot. As the music stops, fireworks go off above Villa Park as the founders of heavy metal bow out of their unbelievable career.

Ozzy Osbourne, following a set with his solo band, was joined by fellow Black Sabbath members to play songs like “Iron Man” and “Paranoid."

The epic 'Back to the Beginning' send-off was held at Villa Park in Birmingham, England, and streamed live globally.