 Teenage/secret agent/musical comedy about Big Daddy (John Lawrence) who s been "driven mad by rock  n  roll," so he plans to sabotage a music fair with a bomb. Secret agent Homer (Jonathan Daly) comes to the rescue aided by his girlfriend Sandra (Karen Jensen) along with Marvin (Carol Shelyne). The sinister villains belong to the crime syndicate F.L.U.S.H. Featuring the musical groups The Turtles, Gary Lewis and the Playboys, The Astronauts, The Knickerbockers and Freddy and the Dreamers.