Lum's plan to get the school's new teacher, Professor Sloan, to leave town has gone amiss. In an effort to get the widow Abernathy infatuated with the Professor and thus make life unbearable in Pine Ridge, the old fellows wrote her a love letter, and signed the school teacher's name to it. However, Abner wrote it on the back of a reference letter which Cedric wanted to present to the Professor and thus the love letter fell into his hands...