While Winchester fearfully avoids getting his agonizing toothache treated, the other surgeons discover a racist commander is sending his African-American soldiers disproportionally into dangerous duty.
When Charles, Hawkeye, and B.J. determine promotion recommendations, they are wooed by the enlisted staff while a bully physically threatens Charles. Potter helps a GI who is being razzed by colleagues for being faithful to his girl.
A famous prizefighter, 'Gentleman Joe' Cavanaugh, comes to visit the 4077th and while there, has a stroke. Everyone is irritated by Pierce, who as his doctor, becomes the spokesman to the press. Father Mulcahey is upset, since Gentleman Joe was his childhood hero.
Ignoring Margaret's offers to help, Potter and B.J. head a bowling team in a championship match against the Marines. Hawkeye's father is having an operation back home, so Hawkeye feels helpless enough to confide in Charles.
After becoming fed up with his bunkmates' living habits, Hawkeye moves out of The Swamp and into a quaint shack behind Rosie's. Meanwhile, Charles and B.J. continue to annoy one another: Charles with his loud, classical music playing at all hours, and B.J. constantly sharing news of Erin's potty training; Colonel Potter wants to paint a portrait of the entire camp as a present for Mildred, but it proves difficult with the men fighting with one another. Klinger, Margaret and Father Mulcahy take it upon themselves to try and get the Swampmen back together. Will they ...
A peddler wheels his cart into camp. Klinger buys from him a goat to get rich selling milk. B.J. shows interest in a blue vase, but Charles outbids him greatly. Meanwhile, much to his chagrin, Hawkeye is paymaster again. But just as he gets the pay rolling, wounded arrive. Hawkeye tells Klinger to keep an eye on the money while he's in surgery. Unfortunately, Klinger left the money in his office alone with the goat...Hawk and Klinger return to find the money gone. It had been eaten. No way would I-CORPS believe that. Worse yet, he still had a ton of angry, unpaid ...
The nurses return from evacuation to find that the doctors have left the camp a mess. Potter announces an inspection in two days, so Margaret and the nurses try to get everything reorganized. Nurse Kelly is mad at Hawkeye for ignoring her.
It's time for the annual 4077th Halloween party. Hawkeye is dressed as Superman, B.J. is a clown, Margaret is a geisha girl, Colonel Potter is a cowboy and Klinger is Al Capone. But it's not much of a party for the surgeons when unexpected wounded guests show up; Charles tries to help a slovenly marine who has a billiard ball stuck in his mouth; Father Mulcahy inadvertently saves a man's life when he is presumed dead.
It's another M*A*S*H prankathon. This time, Hawkeye appears to be the marked man after menial practical jokes happen to everyone in camp, but him. Will they get him too? Or is Hawkeye already the victim of an even larger practical joke?
Hawkeye receives a letter from Colonel Potters wife where she informs that she has paid the last mortgage on their home and asks Hawkeye and friends to throw a small surprise party for Potter to celebrate.
Father Mulcahy must save the camp's honor in a high-stakes footrace against the 8063rd. Hawkeye, BJ, and Hot Lips each bet on it. Meanwhile, Charles tries to help Private Walter Palmer, a patient who suffers frequent verbal abuse from his fellow soldiers due to a speech impediment.