With friends like Rotten Ralph, who needs enemies? It's the first day of school, and Sarah can't wait to make new friends. But her rotten cat, Ralph, has other ideas. He wants to keep Sarah all to himself. First he sets her alarm clock back so she'll be late. Then he ruins her brand-new dress. When none of his pranks stops Sarah from boarding the bus, the frantic feline has no choice but to follow. Disguised as a student, Rotten Ralph heads to school, determined to make sure Sarah's first day is a rotten one.