It's been six years since the infant appeared on the doorstep and the three swinging bachelors from "Three Men and a Baby" are now sharing their luxurious digs with the adorable little girl and her mother Sylvia. All is not domestic bliss, however, and Mom has decided the tyke needs more conventional parenting. Her solution: marry an insufferable British theater director and move to England. Faced with the prospect of losing the mother and child forever, one of the bachelors finally realizes that he is love with Sylvia and becomes involved in a madcap scramble to prevent the marriage from taking place.