With unfettered access to the archival footage contained within the Zappa Vault, Alex Winter explores the private life behind the mammoth musical career of Frank Zappa, who never shied away from the political turbulence of his time. The film features appearances by Frank's widow Gail Zappa and several of his musical collaborators, including Mike Keneally, Ian Underwood, Steve Vai, Pamela Des Barres, Bunk Gardner, David Harrington, Scott Thunes, Ruth Underwood and Ray White.