Hallie Rogers is a pent-up go-go dancer itching for her big break. She's up for a spot on the network rock'n'roll show "Whizbam," a detailed send-up of both "Shindig" and "Hullaballo," but the studio bosses keep giving her the shaft. So Hallie wigs out, escapes from her go-go cage, and steals the mike from Glen Campbell, who's singing onstage at the time. While Glen does all he can to stop this crazy girl on live TV, Hallie shakes and shimmies her way out of impending handcuffs. The audience goes wild, imitating her moves, and when a misdirected camera sends a message out to the nation, a new dance craze is born - the Tantrum! Tony Krum, a teen tycoon begins to manage her booming career. Hallie gets fired from "Whizbam," but her go-go dancing pals take her to Palm Springs, where they see the Leaves perform. She soon meets out-of-step teen idol Cliff Donner, with whom she forms a duo.