'Where the hell did that come from?' was likely the response from many on hearing The Mothers of Invention's debut album Freak Out upon its release in June 1966 -- a time when music was changing, but to a degree that hadn't yet hinted anything this bizarre was on the horizon. But once the freaks and the beautiful people had cottoned on to what Uncle Frank and his Merry Men were up to (despite the latter community often being the target for some of Zappa's most hilarious lampooning), the scene was set for a fanbase of the most dedicated variety to emerge and a respect from critics, musicians, performers and the intelligentsia almost unparalleled in the history of pop culture. This film reviews the true story of The Mothers of Invention and the music they made uring the first incarnation of the band. With group members Jimmy Carl Black, Bunk Gardner, Don Preston and Art Tripp taking up the tale and revealing -- often for the first time -- what the real Frank Zappa was all about; and with contributions from 'scenesters' like LA wildman Kim Fowley, biographer Billy James, Zappa academic Ben Watson, music journalist Richie Unterberger and English writer and musician Alan Clayson -- acclaimed biographer of Edgar Varèse-- this programme is the most detailed, informative and enjoyable documentary on Frank Zappa and The Mothers of Invention yet to emerge. Also features rare footage of Frank and The Mothers from throughout the 1960s, archive interviews, seldom seen live performances, and a host of other feature.