Jang consistently bullies his eighth grade science teacher, Mrs.
P with mean and annoying pranks; but some of his classmates have had enough.
They give Jang a dose of his own medicine with a prank of their own.
Unexpectedly, Jang becomes a hero after he saves Mrs.
P's life, extinguishing a fire in her hair from a chemistry experiment gone wrong.
While recovering from her accident, Mrs.
P experiences a stroke of good fortune in her life because of an ancient Korean traditional belief that says a .