Cody wants to make a positive impression with the principle on his first day of high school, while Zack just wants to hit on older girls. Cody ends up getting into a fight with the school jock/bully and sent to the principle's office. Zack ends up hitting on the school bully/jock's girlfriend and gets in a fight. London tries to adjusts going to public school by buying locker space and new friends, but doesn't go to classes. Nina promises Moseby that she will stay out of trouble but ends of getting into a fight with the school bully when she defends Zack. Everyone ends up being sent to the principle's office on their first day of high school.