Bart and Milhouse find a message dropped by Lisa that reads in cursive, "The five boxing wizards jump quickly." They also see Lisa sneak off into a taxicab. Intrigued, the two recruit Nelson and Ralph, both previous boyfriends of Lisa's, in hopes of profiling her mind to find the meaning of the message. While following Lisa, Nelson and Ralph find another message, also in cursive, saying, "Sphinx of black quartz, judge my vow." The group's efforts in finding out what the messages mean go nowhere, and by this time, Principal Skinner, who is concerned from Lisa's strange disappearances, has joined them. Skinner deduces that the paper used for both messages only belongs to the previous principal of Springfield Elementary School, Meredith Milgram. The five visit her house and find Lisa there. To the kids' dismay, it turns out that she was learning cursive writing, a topic that the school cannot afford to teach. The two messages were mere practice sentences, as both consisted of every letter from the alphabet. The episode ends with the credits all written in cursive handwriting.