The Simpsons (1989)
S21E02 Bart Gets a 'Z'
Episode Overview
The fourth graders at Springfield Elementary come up with a plan to sneak something into Ms. Krabappel's coffee as a way to get back at her for confiscating their cell phones. This stunt leads to her dismissal by Principal Skinner, who then brings in a fresh-faced teacher named Zachary Vaughn. While the students are drawn to Vaughn's cool demeanor, Bart can't shake the guilt of their actions and sets out to find a way to bring Ms. Krabappel back to the classroom.