There's a new gym teacher at school and a little boy imagines him to be a real monster until he sees him in person and realizes he is a regular, likeable person.
After relating all of the horrible things the school custodian, Fester Smudge, is known to have done, a student whose locker won't open needs Mr. Smudge's help.
Hubie heard there's a new kid in school and he's rumored to be a mean bully, who supposedly beat up the football team and ate his teacher's pet at his last school!