The plot of the special differs significantly from the original book. Among the many deviations, the sequence in the book where the Cat balances all sorts of objects while standing on a ball, only to overdo it and come crashing down, is left out. Also differing is the role of Thing 1 and Thing 2; in the original book, they were simply things the cat brought along to demonstrate fun, but in this special, they are commissioned to help find the cat's "moss-covered three-handled family gradunza." The vocabulary used in the special is also of a higher level than the book, though still in Seuss's trademark rhyme.