Sassy and Waldo love school! They get to wear a trench coat and everyone thinks they're a new student named Salty. Except Stewart. He knows the truth. But then Stewart has to stay after school for a club. Sassy and Waldo know that a club is a sandwich. But it's not that kind of club. Sassy and Waldo go to the best place to wait for Stewart in the empty school: the cafeteria! Snacks! Running! Places to nap! Their classmates find out...