Timmy's Pet Rat Doesn't Want to be a Spy. But Nobody Else Can Sneak into the Mad Scientist's Home. Timmy and Grandma train their pet rat Hildegarde to discover who or what is causing earthquakes in Pillow, PA. They meet a mysterious German rat trainer, a crazy inventor, an FBI agent who specializes in aliens, and a cholocate-eating girl. They work hard to train the rat. They build spy equipment small enough for the rat. But when it's time to send her on her mission, does she have all the skills she'll need? Watch Hildegarde, the rat, do her best to save the day.