A science fiction rock comedy spoof from the director of 'Every Which Way But Loose'. Frankie (Craig Sheffer) is the leader of high school rock band The Pack, and is in love with singer Donna. When a guitar-shaped spacecraft lands, Frankie and Donna are astonished that the 'rock aliens' who emerge would rather destroy humans than get down and groove. The teenage lovers have to save the Earth, of course, and play some decent rock along the way.