The MASH 4077 is visted by General Steele. He wishes to move the camp 5 miles down the road. Hawkeye and Henry are charged with mutiny. And Hawkeye is also charged with impersonating a reporter.

Mail from home worries Henry that Lorraine may be seeing other men. Father Mulcahy presides over a Jewish circumcision ceremony for the Korean-born son of a US GI.

Henry's departure to Tokyo leaves Major Burns in charge of the 4077th. He declares total prohibition of alcohol, which leads to a near riot amongst the camp, especially from Hawkeye and Trapper.

The camp is under fire and is swamped with wounded. They are being attacked by their own artillery in a frightening "friendly fire" incident. Trapper and Margaret get trapped in the Supply Tent together. Frank's jealousy of Trapper drives him to propose to Margaret.

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.

Everyone is happy when Henry finds out that he is being discharged and sent home, and Hawkeye and Trapper decide to literally send him off in style...

Trapper is shipped home while Hawkeye is on R&R. Hawkeye speeds to Kimpo with Radar to catch Trapper's plane, but they just miss him. While they are there, they pick up BJ Hunnicut and take him back to camp. On the way back, BJ is introduced to the Korean War.

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.

It's Potter's anniversary. While Potter writes home, Frank and Hot Lips have a wood carving made for him, and Radar rescues a horse and makes him a present of it.

The 4077th plays host to kids bombed out of their orphanage, and at the same time has to deliver a baby and care for battle casualties.

B.J. writes home to his wife, Peg, reporting Klinger's escape attempts, the visit of a formidable chaplain, and one of Frank's goof-ups.

Mail brings a letter to Frank saying his wife is divorcing him, and one to Potter telling him he's going to be a grandfather.

Radar writes home to his mother, as Hawkeye conducts the camp foot inspection, and Colonel Potter gets some shrapnel in his backside.

Potter decides Frank would be less of a pain if the others were friendlier to him; they oblige, with some startling results.

When a rumor for a camp relocation turns out to be real, Hawkeye, Margaret and Radar volunteer to stay behind for a patient who cannot be moved.

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.

Everybody pitches in to save Colonel Potter's horse, who becomes sick while Potter is away in Tokyo. And Margaret asks Hawkeye, not Frank, to operate on her appendix.

A fouled radio call for help on a crossword puzzle leads to a senior officer coming to the 4077th to help with a supposed serious medical problem.

Pressured by Frank, Margaret decides to marry Colonel Donald Penobscott at the 4077th. When Donald arrives in camp, he is treated to a bachelor party and a practical joke while the nurses give Margaret a bridal shower.

Frank Burns cracks up over Margaret's marriage while on R&R in Tokyo, and Major Charles Emerson Winchester III is sent to the 4077th as a replacement by a vindictive superior officer.

Madness strikes as B.J. and his old friend Bardonaro play a series of practical jokes on each other, just as Bardonaro is about to leave Korea. Hawkeye gets the last laugh. He sends Bardonaro off without his traveling papers, and in a jeep with too little gas.

Hawkeye tries unsuccessfully to get to Seoul, to see Nurse Gilmore for the weekend. Meanwhile, Winchester has taped a letter home, asking for his influential parents to help get him back to the States. To get even, Hawkeye and B.J. switch Winchester's clothes, causing Winchester to alter his eating patterns.

Hawkeye and B.J. refuse to shower until Charles stops playing his French horn, and Colonel Potter deals with a patient who wants to kill himself because he is now disfigured.

After a delay of three weeks, five sacks of mail arrive, and everyone in camp reacts to good and bad news from home. Hawkeye receives love letters addressed to another Benjamin Pierce, another man has approached B.J.'s wife, and Radar's mom has found a boyfriend. Klinger: "I may not have a family in Toledo, but I got one here."