This chronicles the incredible story of the making of the Deep Purple album "Machine Head." the album that produced the rock masterpiece "Smoke on the Water" and in 1972 brought worldwide super stardom to Deep Purple putting them at the pinnacle of the seventies hard rock. In exclusive interviews with Ritchie Blackmore, Ian Gillian, Roger Glover, Jon Lord, and Ian Paice we take a track by track by track look at the making of the album. Martin Birch the original engineer and Roger Glover lead US through the original multi-track tapes. Ritchie, Jon and Roger demonstrate riffs and licks from the songs and explain the genesis of the songwriting.