Sassy and Waldo need to save their boy from being bored all day in class, but the school won't let two dogs inside. Good thing they found that trench coat! Sassy and Waldo are good dogs. Sassy and Waldo spend their day keeping the house safe. Has a squirrel ever gotten inside? No! But every day their boy, Stewart, leaves for a scary place: school!Sassy and Waldo need to save Stewart. But they don't let dogs into school. Not even the really good ones. Sassy and Waldo put on a trench coat. Now everyone at Bea Arthur Elementary thinks they are a new student. Everyone except Stewart.