Metal music in Latin America is simply unique. It has tackled head-on the ongoing aftermath of coloniality (poverty, dictatorships, neoliberalism) like very few other musical genres. Few people have documented it as consistently as Dr. Nelson Varas-Díaz, a Professor at Florida International University’s Department of Global and Socio-cultural Studies. This documentary film follows him as he continues his trek through Latin America, documenting the varied manifestations of metal music in the region. In this, his fourth film on the subject, he documents how metal fans and musicians use the power of music to change their societies. Whether inspiring support for rural schools in Guatemala, engagement in environmental activism in Ecuador, or work for memory and peace in Colombia, metal music has become a form of decolonial activism in Latin America. This is what happens when the music’s extreme sounds and lyrics are combined with local concerns with un buen vivir (a life well-lived). Metal has taken to the streets, and is a force to be reckoned with beyond the stage.