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The film discusses the traits and originators of some of metal's many subgenres, including the New Wave of British Heavy Metal, power metal, Nu metal, glam metal, thrash metal, black metal, and death metal. Dunn uses a family-tree-type flowchart to document some of the most popular metal subgenres. The film also explores various aspects of heavy metal culture.

On July 5th 2008 the Amsterdam ArenA was filled with the Ocean of White. Against a breathtaking backdrop of waterfalls and fountains, the world's best DJs provided the music, spectacular dance acts and mind-blowing special effects provided the entertainment, and thousands of people were submerged in the magical underwater world.