Prompted by pressure from Frank, Hot Lips sets a date for marriage with Lieutenant Colonel Donald Penobscott. When Donald arrives in camp for the wedding, a bridal shower and bachelor party are given. When he has passed out drunk, Hawkeye and B.J. place Donald in a body cast and convince him that he has broken his leg. The ceremony is performed and Donald and Hot Lips leave for a week's honeymoon in Tokyo.
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.