Major John MacGillis is a conservative by-the-book die-hard Marine. Polly Cooper is a pacifistic liberal journalist. Nonetheless when the two meet there's instant and intense chemistry between them. With the permission of Polly's 3 daughters the two get married within weeks. Now Polly (and her kids) have to learn how to deal with being a Marine family while Major MacGillis has to learn how to be a Dad...