While Mr. Grouper is at a dentist appointment, Mr. Grumpfish fills in for him. Problems arise when this grouchy substitute teacher claims he does not like anything. So, the Bubble Guppies recap on the best songs from Season 1 and show him that there are things to like.

The Bubble Guppies are excited to perform with an orchestra. Soon, a flying saucer appears. The conductor leaves to get his camera so he can take a picture of the flying saucer, leaving nobody to conduct. Eventually an alien comes out of the flying saucer and conducts the orchestra.