By the time Master of Puppets came out on March 3rd, 1986, Metallica was truly ready to make the jump to the big time. For 6 months that year, they were the opening act for Ozzy Osbourne. It would be the last time the band played second fiddle to anyone on tour.

Metallica's third studio album grabbed mature concepts and meshed them perfectly with gripping, emotional, and vibrant instrumental play. The album sounded even more operatic and larger than live compared to the group's two previous records. Themes of war, the system, and losing hope were at the heart of one of the most important rock records of the 1980s.

Metallica had been building to this for years, and it led to the band pushing themselves and the metal genre into untreaded water. But unfortunately, 1986 was also the year a tragic incident forever altered the band’s very foundation.