Colonel Potter meets a female soldier of the same age and interests as himself, named Lil. The others in the camp think that he might be cheating on Mildred, even though his friendship with Lil is completely platonic. Meanwhile Hawkeye tries to find out what B.J'.s initials stand for. As it turns out, he was named after his parents, Bea and Jay Hunnicutt.
The 4077th Mobile Army Surgical Hospital is stuck in the middle of the Korean war. With little help from the circumstances they find themselves in, they are forced to make their own fun. Fond of practical jokes and revenge, the doctors, nurses, administrators, and soldiers often find ways of making wartime life bearable.