When Peppermint Patty’s team plays Charlie Brown’s team one day, Marcie notes that everyone on Charlie Brown’s team wears a baseball cap. So why, she asks Peppermint Patty, does their own team not wear baseball caps?
Peppermint Patty is untroubled by the lack of baseball caps for her team, but Marcie decides to take it upon herself to come up with the perfect cap for their team to wear. While Peppermint Patty insists that winning is better than having caps, Marcie finds or creates a variety of different caps to present as possible team caps, ranging from the impractical to the downright ridiculous.
Finally, Peppermint Patty gives in, and the two see an advertisement for kids to receive a free ball cap when attending the local professional team’s next game. Peppermint Patty comes up with a scheme to enter the ballpark to receive a free cap, then sneak out by climbing a wall so that she can re-enter to receive another. The plan was to repeat this until they had accumulated nine baseball caps.
However, in a fit of conscience, Marcie decides that having team caps is not worth doing something unethical. She leaves the stadium just as Peppermint Patty is climbing the wall out of the ballpark. With no one to catch her coming down from the wall, Peppermint Patty lands on her head, and she declares that she is glad Marcie had changed her mind because repeating this process nine times likely would have killed her.
