In this documentary film a team of researchers examine the social contexts that influenced the emergence and permanence of heavy metal music in Chile, Argentina, Mexico and Peru. Colonialism, dictatorships, terrorism and neoliberal exploitation serve as points of reference for how heavy metal in the region has been directly linked to each country's social and political context.

Alonso Herrera
as Himself

Eloy Arturo
as Himself

Alejandro Jarrín
as Himself

Johnny Chávez
as Himself

Alberto Pimentel
as Himself

Luis Oropeza
as Himself

César Gallegos
as Himself

Chris Irarrázaval
as Himself

Maximiliano Sánchez Moncada
as Himself

Yanko Tolic
as Himself