Penny feels guilty after taking a beautiful blue marble that she sees in Mrs. Goodwin's grass, but gets a pleasant surprise when she goes to return it the next day.
Mouse is busy preparing for Halloween, but Mole is dreading the scary holiday, so Mouse decides to show her best friend there is no reason to be scared.
Pearl and Wagner, a rabbit and a mouse who are best friends, learn about secrets during a trip to an ice cream factory and an amusement park birthday party.
April Fools' Day turns into a bad day for Wagner the mouse when his best friend, Pearl the rabbit, and other children and adults at school play tricks on him.