
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.
Hawkeye and Hot Lips come under heavy artillery fire in enemy territory, with Hawkeye receiving a leg wound.
Charles' French horn practicing causes Hawkeye and B.J. to go on a bath strike.
Hawkeye gives up jokes while Charles schemes to give up Korea.
B.J. braces for a wedding anniversary without Peg as Charles prepares for front-line action.