For a school assignment, a boy reluctantly writes a letter to Clunk of the planet Quazar, sending his older sister with it, but as more letters and packages are exchanged, he realizes that having an alien pen pal can be fun.

Mac McGerp, winner of the Best Burper first prize at the Tri-county Fair, and his good friend, Lido, try to figure out how to deal with the new repressive school principal.