Two big families merge into one super-sized brood in this comedy. Frank Beardsley (Dennis Quaid) is a naval officer who has been raising eight children on his own after the death of his wife, and while he loves his kids, he rules his household with military precision. Frank has been alone just long enough that he decides it's time to start dating again, and he agrees to be set up on a blind date for a social function. To his surprise, his date turns out to be Helen North (Rene Russo), a girl he dated years ago when they were both in high school who, like Frank, lost her spouse not long ago. The old chemistry clicks anew for Helen and Frank, and he asks her to marry him. However, there's just a bit of a problem -- Helen is caring for ten children of her own, six of whom were adopted, and her artistic temperament makes for a very different household than Frank and his kids are used to. Frank and Helen decide to give this grand experiment a try, but the 18 siblings don't get along at all well at first, until they decide to set aside their differences and unite against a common foe -- their folks. Yours, Mine & Ours is a remake of a 1968 comedy of the same name, which starred Henry Fonda and Lucille Ball as the newlywed parents.
by Mark Deming synopsis