
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.
Col. Potter learns that negative reports regarding him and the 4077th have reached Seoul.
The amphetamine pill Charles takes to give him some energy has strange results.
Hawkeye and B.J. become lost in enemy territory.
Charles assumes heroic proportions after reviving a dying patient with heart massage.