LA is the birthplace of 3 out of the "Big 4" (Metallica, Slayer, Megadeth) Thrash bands as well as the breeding ground for many of speed/thrash/ bands. So why is it that L.A. thrash metal has taken a backseat to NorCal Bay Area bands' This is one of many topics that are revealed in Part Two of this compelling 2-Volume documentary presented.