When it comes to thrash metal, everyone knows who the big four are: Metallica, Slayer, Megadeth, and Anthrax. For the first time ever, these acts shared a stage in 2010 for a monumental concert from Sofia, Bulgaria. Now, fans can enjoy the full sets from each band during this historic moment in head-bangin' history. Songs include "Caught in a Mosh" (Anthrax), "Hangar 18" (Megadeth), "Raining Blood" (Slayer), "Creeping Death" (Metallica), and many more. 5 hrs. total on two discs. Soundtrack: English; behind-the-scenes footage; interviews.