Each volume in the Rock Milestones series of home video releases uses archival film, concert footage, and exclusive interviews with band members to explore the background, creation, content and legacy of one legendary rock & roll album. Rock Milestones: Led Zeppelin 4 zeroes in on Zeppelin's fourth LP, an untitled effort that shot to the top of the charts upon release circa November 8, 1971, and single-handedly shaped the landscape of hard rock over the ensuing decade. Though officially untitled, this album has since been dubbed Runes, IV ,and Four Symbols and yielded the blockbuster hit "Stairway to Heaven," an icon of rock that subsequently attained mythical status. Other tracks on this album included "Black Dog," "Rock 'n Roll," and "When the Levee Breaks." Rock Milestones: Led Zeppelin 4 goes behind the scenes to investigate why -- and how -- this album became a decades-long phenomenon and the inestimable impact it made on American music and pop culture in particular.