What's this?! Plaque Monsters are bombarding a castle made from teeth, and gooey plaque hits the castle walls. It must be the work of the evil Sorcerer Plakula!
The Queen of Tooth Kingdom consults her Royal Dentists — who look just like Dr. Rabbit and Dr. Brushwell! The dentists bring in some young squires to help. It's the five children, stepped back in time!