The supply lines to the camp are cut. Radar, the housing officer, starts doubling people up to save fuel and Klinger is thrown out of the nurse's tent. People start burning everything to stay warm while Frank wears his heated socks. The toilet paper supply is worst hit, and then wounded start arriving. Supplies are eventually restored.

While Henry is away in Seoul, Burns and Houlihan are in charge, and Hawkeye is the officer of the day. His refusal to release a wounded Korean soldier, wanted by US Intelligence, leads to a confrontation with Colonel Flagg.

General 'Iron Guts' Kelly arrives for an inspection, and ends up dying in Margaret's tent. Hawkeye and Trapper help the General's aide smuggle him out of camp. The next day he is reported killed at the front, as that is where he would have wanted to die.

When spring arrives, Klinger gets word from home that his sweetheart back in Toledo wants to marry him. Henry arranges for Father Mulcahy to do this over short wave radio. Radar falls in love with a nurse, while a grateful patient won't leave Hawkeye alone, and even threatens Major Burns.

Sick and tired of having liver and fish for an 11-day stretch, Hawkeye, driven near to insanity, starts a riot in the mess tent. He and Trapper then orders spare ribs and sauce from the best place he ever had them, in Chicago. Trapper calls a woman he spent a weekend with to pick up the ribs, and then they get choppered in. Unfortunately, right as they're sitting down to eat, wounded arrive, and Hawkeye is forced to postpone sinking his teeth into his beloved ribs.

A local dog bites Radar, and the camp conducts a search to find the pooch, so that Radar doesn't have to undergo a series of painful rabies vaccinations. Hawkeye defies Frank, to take care of a GI who's suffering from a case of hysterical paralysis.

Hawkeye is accused of hitting Frank and is placed under house arrest pending a court-martial. Meanwhile. Margaret is nervous about a visit from a meticulous female colonel.

Frank buys two sets of pearls, one for Margaret and one for his wife. After some talk, Radar gets Hawkeye $3,000 in lost earnings, Hawkeye gives it to Mulcahy for the orphans, but then the army wants the money back. Trapper wins big at poker after using Hawkeye's watch as a stake, so Hawkeye takes his winnings to avoid a stay in the honeymoon suite of The Stockade Hilton.

Colonel Flagg blows into camp trying to obtain penicillin to barter for information. But Flagg comes down with appendicitis, and the only penicillin he gets is in the keister.

Frank settles in as commanding officer, only to have a new one appointed over his head, one that, to his chagrin, fits in very well.

Hawkeye tangles with a tough Army colonel, Colonel Spiker, B.J. helps Zale, who's received a "Dear John" letter, and Frank looks endlessly for Korean saboteurs.

Radar gets the help of Hawkeye and B.J. to procure something Colonel Potter says he's fond of, but that's hard to come by - tomato juice.

Following an offer of promotion made by Master Sergeant Woodruff at a poker game, Radar is promoted to the rank of lieutenant. Finding this position awkward, Radar opts to return to his position as an enlisted man.

Hawkeye and Potter provide assistance at a Korean clinic, and run into an enemy attack on the way home. Meanwhile, Klinger begins posing as a Gypsy to help get his discharge papers.

Radar becomes an aspiring writer after ordering a flier from a comic book, and Hawkeye and B.J. give Frank a surprise birthday present that only he will appreciate.

As the temperatures reach triple digits, Hawkeye and BJ recieve their new rubber bathtub from Abercrombie & Fitch. However, soon the whole camp is hot under the collar as word leaks out about the tub and everyone wants a dip, except for Klinger, who is trying to get his Section 8 by wearing a fur coat.

Father Mulcahy writes a pre-Christmas letter to his sister, who is a nun. He recounts his frustrations at not being more effective at the 4077th.

The 4077th is confronted by two crises: Colonel Potter's mare, Sophie, mysteriously disappears from her corral, and Hawkeye and B.J. find themselves with a young Korean boy on their hands, who is trying to avoid conscription into the Army.

On a sub-note, Klinger plays the part of a voodoo practioner to try and get out of the army.

A Congressional aide, Williamson, visits the 4077th on a supposedly routine fact-finding tour, but it's discovered that his motives are far deeper - too uncover Margaret as a communist sympathizer. His case is full of innuendo, so the gang set out to help Margaret.

Klinger and BJ both have Radar related woes, causing them to go on a drinking binge. A drunken BJ becomes violent with Hawkeye.

A beautiful and ambitious young nurse, Harris, who plans to become a doctor when she leaves the Army, finds herself in a misunderstanding with Father Mulcahy. Meanwhile, the camp's water supply is depleted, and the rest of the 4077th is more concerned about where their next shower will come from.

Hawkeye and BJ lose their way while rushing urgently needed antibiotics to the 4077th, which is wracked with low-mileage Thanksgiving turkey-induced salmonella. Wandering back to M*A*S*H, the pair are found by a peculiar North Korean soldier.

Hawkeye and BJ race against the clock to save a soldier from paralysis. BJ harvesting an aorta from a dead soldier doesn't sit well with the soldier's friend.

Friction arises between B.J. and Winchester when they are asked to write an article for a prestigious medical journal, on how they saved a soldier's life with a daring operation. Meanwhile, Hot Lips receives an eventful visit from Scully, her combat soldier beau.

Horrified by the gigantic size of his monthly bar tab at the officer's club, Hawkeye vows to give up booze for a week. Meanwhile, Winchester desperately tries to halt his sister's impending marriage to a man he considers unworthy of the Winchester heritage.

Tired of their constant complaints about the quality of recreational activities at the 4077th, Colonel Potter appoints Hawkeye and B.J. as the new morale officers. Winchester's morale has already reached a new peak: He's ecstatic about his operation on a wounded soldier, Sheridan, which saved the boy's leg, leaving only "negligible" side effects - less use of his right hand. However, the soldier was a concert pianist before the war, so Winchester obtains music written by Maurice Ravel for a pianist that had lost a hand in World War I.

Hawkeye, B.J., and Margaret try to save the life of a critically injured solider so that his family won't think of Christmas as the day that their father died. Meanwhile, Winchester fulfills a family Christmas tradition but has trouble maintaining the anonymity required to keep it a truly charitable act. Even Klinger lends a hand.

On New Year's Eve, the staff looks back on the highlights of 1951: The doctors invent an artificial kidney machine; Mulcahy plants a garden; Margaret takes up knitting; and Klinger and Winchester bet on which baseball team will win the pennant.

Klinger is so depressed by news that his ex-wife plans to remarry, he reenlists for an additional six-year hitch. Meanwhile, a male nurse has a gripe against the army.

Margaret develops a case of prickly heat, Charles does his tax returns, and Klinger takes the P.A. apart - just some of the events, which occur during another unendurably, hot night at the 4077th.

Hawkeye wagers that he can go a full day without a wisecrack, and Winchester finally confronts the major who exiled him to the 4077th. Charles: "I will not, even for a return to that pearl of the Orient, Tokyo, lie to protect you while destroying a friend's career."

One of Margaret's nurses tries to hide her severe drinking problem, and Hawkeye is scorned after a practical joke he plays on Winchester backfires.

Colonel Potter nearly blows his stack when his well-intentioned colleagues mollycoddle him in order to lower his blood pressure.

Hawkeye is overcome by the devotion of a terminally ill G.I., who has leukemia, for his critically wounded buddy, but he has trouble coming to terms with the fact that he can't cure the man. Meanwhile, Father Mulcahy is worried about the impending visit of a Cardinal.

The 4077th is given a gift of fresh-grown vegetables by a grateful Korean; and Potter questions the veracity of an upbeat letter from Radar.

Father Mulcahy counsels a GI who is plagued by guilt because he has swapped tags with a dead colleague. Meanwhile, B.J. and Charles consider ways of keeping a soldier-salesman quiet.

The latest scuttlebutt affects everyone's behavior when a visitor is rumored to be recruiting for a new M*A*S*H unit. The gang fears that the 4077th will be split up.

On the eve of a big poker game, B.J.'s pride is bruised when he finds out his wife is working as a waitress. And Potter takes driving lessons from Klinger.

Winchester infuriates the camp when he hoards his stateside newspapers, and Hawkeye reunites two Korean brothers who have been fighting on opposite sides of the war.

The military police think they've solved a rash of thefts at the 4077th when they apprehend Klinger with Hawkeye's stolen camera.

To boost post-yuletide morale on Dec 26, Potter has the officers and enlisted men change places for the day.

Hawkeye goes to help at an aid station, and under heavy shelling he draws up a will, leaving various items to his friends at the 4077th.

Winchester, Pierce, and Hunnicutt find themselves in the sticky position of having to decide which enlisted men to recommend for promotion. For Winchester it could be a matter of life and death.

Potter's attempts to assemble the crew for a family portrait are thwarted by a feud between bunkmates Pierce, Hunnicutt, and Winchester. Things are not helped by the efforts of Margaret, Klinger and Mulcahy to bring the Swampmen back together.

Klinger buys a goat, with the intention of getting rich by selling it's milk. Then the goat eats the 4077th's $22,340 payroll, leaving paymaster Hawkeye holding the bag. Meanwhile, Charles also thinks he can make a killing when he sees an ancient vase.

Margaret and her nursing staff are about to be inspected by Col. Bucholz. Meanwhile, Kellye is offended that Hawkeye is attracted to any nurse except her.

Tired of reminders about Trapper John's skill as a practical joker, B.J. bets Hawkeye he can prank everyone present.

With the camp facing prohibition, and a severe medical supply shortage, during another heat wave, Hawkeye resolves to lift morale by importing a racy new movie.

A military strategist refuses to accept responsibility for the war games that have mortally wounded his own son. And Margaret develops laryngitis, as she is about to meet her hero, Dr. Chesler.

Potter must deal with an old Army friend who is getting his own soldiers killed through his incompetency.

A wounded GI learns a painful lesson when he forms a recovery room friendship with the enemy soldier he's critically wounded. Soldier: "My boots. All he wanted was my lousy boots. His feet were freezing. I'd have done the same thing. He was just a guy like me, and I shot him. I killed him, for a pair of boots. How can I ever look at a pair of shoes again without thinking of him?"

Margaret and Hawkeye work on a time capsule to commemorate their time in Korea; Rizzo and BJ goof around with a fake hand grenade; Klinger becomes smitten with a young, pretty Korean war criminal.

Hawkeye is sent to a mental hospital; a freak accident causes Father Mulcahy to lose his hearing; Margaret worries about her post-war plans; Charles run across a band of Chinese musicians; BJ is sent home, much to Hawkeye's dismay; Klinger decides to stay in Korea to marry Soon-Lee; a ceasefire is declared, ending the war.