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.
A lone sniper turns the hospital compound into a combat zone, traps Henry and Radar in the showers and forces surgery by candlelight after he knocks out the generator.