One afternoon Katie overhears Mr. G. say he’s cutting off his ponytail and picking up a suit. Mr. G. in a suit? Something strange is going on. Of course, Suzanne (thinks she) knows exactly what’s going on: Mr. G. is looking for another job. The kids in 4A can’t let Mr. G. leave! So they devise a plan to make sure he stays for good. But when Katie turns into Mr. G., she discovers that she and her friends may have made their problem even worse . . .