Joe is concerned about his grades. He has a deferment until he graduates to hopefully join naval aviation. However, if he fails his classes, he will have to join the Navy now. When Professor Crayton has the student's book reviews returned with their grades, Joe can't believe he got an F. He becomes irate, confrontational, and storms out the classroom. When Mrs. G tries to take up for Joe privately with the professor, he explains that it was clear Joe didn't read the book. Mrs. G, Maxy, George and Irma are all concerned about Joe's whereabouts in his state of mind and try phoning places across town. Joe still hasn't returned by the next morning. George informs Mrs. G that one of his students saw Joe in town at the Navy recruiting office. Maxy drives Mrs. G to the office where she runs into Lt. Charles 'Chick' Hennesey, MD (Jackie Cooper in a crossover of his own series "Hennesey")- her nephew's naval doctor. Mrs. G explains the situation and it's brought to the naval commander, where the influencing decision rests with Professor Crayton.