The lives of the cast and crew of a period drama become chaotic when word spreads of possible award winning performances.

Once upon a time, Spinal Tap had a big hit song. Now, nearly two decades later, Spinal Tap still clings to some glint of their lost glory as they embark on an accident-plagued tour across America. In Cleveland, the group gets lost underneath the stage. In Washington, they're accidentally booked at an Air Force formal dance. And in a Chicago record store, no one shows up to get their autographs.