When Billy Broccoli moves into his new house, he discovers Hoover Porterhouse, a teenage ghost, is haunting his room, and he helps Billy get in style, stand up to bullies, and conquer his new school.

Hardly anyone noticed young Sally McCabe. She was the smallest girl in the smallest grade. But Sally notices everything -- from the twenty-seven keys on the janitor's ring to the bullying happening on the playground. One day, Sally has had enough and decides to make herself heard. And when she takes a chance and stands up to the bullies, she finds that one small girl can make a big difference.

Following their teacher's lead, Llama Llama speaks to Gilroy Goat and tells him he shouldn't act like a bully on the playground.