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.
Hawkeye and Potter provide assistance at a Korean clinic, and run into an enemy attack on the way home. Meanwhile, Klinger begins posing as a Gypsy to help get his discharge papers.