Because so many of the group's songs require the unique talents of Nigel Tufnel, they've decided to try out a free-form jazz exploration that they call "Jazz Odyssey." We're sure there are going to be some Homeric references in there.
The festival crowd isn't a large one, and most of those who have shown up to see the band's "new direction" are rewarding them with thumbs-down gestures. Which is like, the ultimate insult.
At the "end of tour" party in Los Angeles, David speaks to a reporter who asks if this is the end of Spinal Tap (the band, not the movie). He gives what we will politely call a "roundabout" answer.
David and Derek then discuss the possibility of hanging up their Tap jackets and using their declining musical years to focus instead on other projects. Like their idea for a rock musical based on the life of Jack the Ripper.
Based on the snippet we're treated to, the audience of this musical, if staged, might start wishing in earnest to become Jack's next victims.
In the dressing room just before the last gig of the tour, Nigel shocks the world (okay, maybe just the other members of the band) by showing up unannounced.
He says that he ran into Ian (remember Ian?) who told him that "Sex Farm Woman" is number five on the charts in Japan.
He proposes that the band let bygones be bygones, reform, and do a tour in Japan. David isn't totally receptive, and besides, it's showtime.
Spinal Tap performs "Tonight I'm Going to Rock You Tonight" while Nigel loiters in the wings.
In the middle of the song, David resolves inwardly to accept Nigel back into his life, and he gestures for him to join them on stage. Because that's what you do when you're closer than brothers.
Spinal Tap is now touring Japan, and it looks like all's well that ends well. Except for Mick Shrimpton, who becomes the second Spinal Tap drummer to spontaneously combust.