Potter leaves camp and makes Hawkeye the temporary commander of the 4077th. The weight of responsibility quickly takes a toll on Hawkeye as he encounters a mountain of bureaucracy. (S7 Ep1)
A truckload of wounded Marines arrive and the camp must deal with a bad batch of morphine and a corporal who shoots down invisible enemy gliders. (S6 Ep25)
Dr Winchester and Mr Hyde: Major Winchester gets addicted to Benzedrine. Meanwhile, Radar sets up a mouse race competition between the 4077th and a group of smug Marine patients. (S6 Ep24)
Potter's Retirement: General Kent has a meeting with Col. Potter to inform him that he has been receiving a lot of negative reports regarding the 4077th and Potter himself. (S6 Ep23)
Temporary Duty: Hawkeye is replaced with Captain Dupree during a temporary transfer between the 4077th and the 8063rd. Dupree impresses the staff in surgery - but not with his personality. (S6 Ep22)
Mail Call Three: Five sacks of mail arrive at the 4077th, three weeks late. There's good and bad news, and Radar receives a letter from his mother informing him of her new boyfriend. (S6 Ep21)
What's Up, Doc?: Margaret undergoes a pregnancy test administered by Hawkeye. A patient who desperately wants to go home holds Charles and BJ at gunpoint in the sickbay. (S6 Ep20)
Your Hit Parade: A new shipment of records has come in and Col. Potter has promised Radar that he can play them over the P.A. system to lift everyone's spirits. (S6 Ep19)
Tea and Empathy: Penicillin has been stolen just as wounded British and American soldiers arrive. Father Mulcahy knows where it's being stored due to a soldier's confession. (S6 Ep18)
Patent 4077: Klinger accidently discards Margaret's wedding ring while cleaning and is sent to the dump to find it. Hawkeye is fed up with having to work with inadequate surgical equipment. (S6 Ep17)
The Smell of Music: Hawkeye and BJ refuse to shower until Major Winchester stops playing his French horn and Colonel Potter deals with a disfigured patient who wants to kill himself. (S6 Ep16)
The Merchant of Korea: BJ and Hawkeye challenge Major Winchester to a poker game in the hope that he will stop using the money they owe as leverage for random favours. (S6 Ep15)
Comrades in Arms - Part 2: Potter and B.J are frantic about their missing comrades, so BJ disobeys orders to find them. Hawkeye and Margaret have become more hostile towards each other. (S6 Ep14)
The Grim Reaper: Colonel Bloodworth antagonises Hawkeye, who retaliates by shoving him. Bloodworth presses for a court martial, until he's wounded and watches Hawkeye save a soldier's life. (S6 Ep12)
The M*A*S*H Olympics: Col. Potter, deciding that the camp is out of shape, enforces an exercise regime. When Klinger hears being overweight can bring a discharge, he has an idea. (S6 Ep11)
Images: Hawkeye and BJ try to discourage Radar from getting a tattoo. Hot Lips realises that there is a camaraderie among the nurses at the 4077th, and she is not included. (S6 Ep10)
In Love and War: Hawkeye begins to fall in love with a Korean villager. Meanwhile, Margaret learns that her husband may have made a pass at a new nurse assigned to the 4077th. (S6 Ep8)
The Light that Failed: It's mid-winter and due to a delay, the 4077th has nearly run out of light bulbs. But when the supply truck arrives, they find they've received the wrong shipment. (S6 Ep7)
The Winchester Tapes: Major Winchester desperately wants to leave the 4077th and tapes a letter to his wealthy father begging him to use his influence to get him transferred to the U.S. (S6 Ep6)
War of Nerves: The camp is tense, so they create a bonfire to release their pressure. Meanwhile, Sidney Freedman is depressed over a young soldier who blames him for his injuries. (S6 Ep5)
Last Laugh: Madness strikes as BJ and old friend Bardonaro play a series of practical jokes on each other. Klinger leads an imaginary camel around, feeding it and even cleaning up after it. (S6 Ep4)
Fallen Idol: Radar tells Hawkeye he thought going to war would make him a man and that so far nothing has happened to him. Things go horribly wrong when Hawkeye tries to cheer up his friend. (S6 Ep3)
Fade Out, Fade In - Part 2: Major Charles Emerson is sent to the 4077th as a replacement by a superior officer. Charles is a feisty, highbrow surgeon and hates the camp. Part 2 of 2. (S6 Ep2)
Fade Out, Fade In - Part 1: Margaret's wedding leaves Major Burns feeling distraught. On R&R in Tokyo he drunkenly accosts a blonde officer, calling her Margaret. Part 1 of 2. (S6 Ep1)
Post Op: Blood is low and casualties are high as incoming patients arrive at the 4077th. Hawkeye, BJ, Frank and Hot Lips work in the O.R. through the night and into the morning with no rest. (S5 Ep24)
Souvenirs: Hawkeye chastises Willie Stratton, a souvenir junk dealer, for endangering the lives of Korean children. Klinger becomes a pole-sitter in his latest attempt to get a discharge. (S5 Ep23)
Movie Tonight: Col. Potter hopes a movie will cure the 4077th's morale problem. But during the show, the staff of the camp are forced to make its own entertainment. (S5 Ep22)
The General's Practitioner: Much to his dismay, Hawkeye is being considered as a general's personal physician. Radar becomes a surrogate father to a Korean woman and her baby. (S5 Ep21)
Hepatitis: Hawkeye's back pains seem insignificant compared to Father Mulcahy's health problems. Hawkeye suspects hepatitis and has to inoculate the reluctant staff. (S5 Ep20)
Ping Pong: Frank objects when the 4077th hosts a traditional Korean wedding. Col. Potter runs into an old friend who has put his troops in jeopardy so that he could receive a promotion. (S5 Ep17)
Unforgettable Characters: Radar becomes an aspiring writer and begins writing his impressions of the camp. Hawkeye and BJ give Frank a surprise birthday present. (S5 Ep15)
Exorcism: There's havoc when Radar removes a spirit post from the road. An elderly Korean man refuses surgery unless the spirits in the camp are exorcised. (S5 Ep14)
Hawk's Nightmare: Hawkeye is surprised to learn he's been sleepwalking. All he knows is that he's been particularly depressed about the young age of the soldiers he is trying to keep alive. (S5 Ep13)
The Colonel's Horse: Col. Potter leaves for some R&R and asks Radar to look after his mare. Margaret asks Hawkeye to operate on her appendix, and Klinger is depressed. (S5 Ep12)
The Korean Surgeon: Instead of turning him in as a prisoner of war, Hawkeye and BJ pull some strings to get a wounded North Korean surgeon a spot on the staff. (S5 Ep10)
Mulcahy's War: Frank claims a patient shot himself to get out of combat and calls in Father Mulcahy. Troubled by his lack of experience at the front, Mulcahy goes there with Radar. (S5 Ep9)
Dear Sigmund: Psychiatrist Major Freedman writes to Sigmund Freud about his frustrations and observations during the war, while the rest of the camp endures a mystery prankster's hijinks. (S5 Ep8)
The Abduction: Colonel Flagg is called in when Margaret disappears during the release of North Korean prisoners in the area, unaware that she's actually gone to help deliver a Korean baby. (S5 Ep7)
The Nurses: The nurses go behind Margaret's back so that a fellow nurse confined to her tent can spend the night with her soldier husband who is paying her a surprise visit. (S5 Ep6)
Lt Radar O'Riley: Following an offer of promotion made by Master Sergeant Woodruff at a poker game, Radar is promoted to the rank of lieutenant. (S5 Ep5)
Out of Sight: Hawkeye is temporarily blinded while trying to fix the nurses' furnace, and Frank finds a sure-fire way to win bets on baseball games. (S5 Ep4)
Bug Out - Part 1: When a rumour about a camp relocation turns out to be real, Hawkeye, Margaret and Radar volunteer to stay behind with a patient who cannot be moved. (S5 Ep1)
Deluge: Just as everyone is ready to relax the PA announces incoming wounded. The Chinese Army joins the war, ending any hopes the 4077th has about a speedy resolution and homecoming. (S4 Ep24)