Punky's fourth grade teacher is Mike Fulton. Mike's friend, boxer Marvelous Marvin Hagler, comes to Punky's class and talks about boxing. At lunch time, the school bully, Moose McGurk, takes lunches from Punky's friends, but Punky won't let Moose take hers, so Moose drags Punky into the restroom and beats Punky up. Punky wants to stand up to Moose, so Marvin trains Punky to be a boxer, but in the end, Marvin tells Punky that she can't box very well. Moose and Punky are set to fight behind the apartment building, and Cherie tells Moose that if she fights Punky, Moose will have to fight Cherie as well. And then all the other kids tell Moose that if she fights Cherie she'll have to fight all of them. Moose gets nervous and says that she can't fight everyone, so Moose runs home.