Mrs. Jenkins? class is performing a play about taking care of teeth and Yoko has the misfortune of being cast as the villain - the cavity! When Yoko realizes she can offer something unique to the role, her special violin sound effects become the highlight of the show.;The Franks take great pleasure in making everyone laugh with their funny jokes and zany antics, but they pull some pranks that go too far and their classmates are no longer amused. When it?s time for the big square dance to begin, the Franks can?t find anyone willing to be their partners - including each other. Longing to take part in all the fun, the two brothers apologize to everyone for their behaviour and join the dance.