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. Nevertheless, the war goes on, and over time, friends are lost and new ones gained.

This show has several interesting trivia facts:
-The series lasted 11 years, while the actual Korean War was only 3.
-Almost 125 million people in the USA watched the final episode, at that time the largest audience ever for a television program.
-Klinger's attempt to be thrown out of the army by wearing women's clothing was inspired by the comedian Lenny Bruce, who similarly attempted to win his way home from active service by dressing up as a WAVE (female officer).
-During filming for the final episode, a brush fire broke out and destroyed much of the ranch set. Since the show was coming to an end, it was decided that rebuilding the set would be unnecessarily expensive, and the fire was written into the story by having the North Koreans set off incendiary devices and start a brush fire.