
Members of the 4077th Mobile Army Surgical Hospital care for the injured during the Korean War and use humor to escape from the horror and depression of the situation. Among the 4077's people are Capts. Benjamin "Hawkeye" Pierce and "Trapper John" McIntire, Majs. Margaret "Hot Lips" Houlihan and Frank Burns, and Cpl. Walter "Radar" O'Reilly.

After a delay of five weeks, five sacks of mail finally arrive at the 4077th.

Father Mulcahy agrees to offer his running abilities in a race that pits the 4077th against the 8063rd.

Three United Nations delegates visit: a physician who is similar to Charles, an Army officer who teaches yoga and a Swede who catches Margaret's attention.

Charles refuses to solve his annoying snoring problem; Potter's son-in-law visits with some shocking news.