Doug wishes he had less homework, because Ms. Kristal gives so much of it. Willie tells his dad that he and his classmates haven't learned anything from Ms. Kristal, and besides, she didn't vote for him when he was mayor. Ms. Kristal is fired and Principal White takes over. As a result, Doug gets his wish, because Principal White's idea of teaching (and homework) is reading comic books. The only one concerned is Skeeter, who circulates a petition to get Ms. Kristal back, but his classmates are enjoying the break from homework and refuse to sign the petition. Skeeter manages to get only two signatures on the petition - his own and Doug's (who only signs out of loyalty to Skeeter) - and throws it away. Soon Principal White puts Willie in charge of the class, and he turns into a tyrant, suspending Skeeter and forcing the students to wait on him hand and foot. With that, the rest of the kids in Ms. Kristal's class finally decide they want Ms. Kristal back. Doug takes up the case with Mayor Tippi Dink at a school board meeting and tricks Willie into admitting that Ms. Kristal was really a good teacher. As a result, Ms. Kristal is reinstated, and Mayor Dink asks Ms. Kristal to add a new student to her class—Principal White!