Wilbur is the only naked mole rat in his colony who enjoys wearing clothes, and when Grandpah, the oldest and most naked naked mole rat, discovers his secret, Wilbur fears he will be ostracized from the colony.
After learning that she has the power to communicate with rodents, ten-year-old Emmy seeks a way to stop Miss Barmy, an evil nanny who has been turned into a rat, from stealing jewels from Emmy's wealthy parents.
When Emmy discovers that she and her formerly loving parents are being drugged by their evil nanny with rodent potions that can change people in frightening ways, she and some new friends must try everything possible to return things to normal.