Hawkeye, Houlihan, and Klinger go to an aid station at the front. Working closely together under heavy fire and unsanitary medical conditions, the three return to camp with new found respect for one another.
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.