In this sequel to Father of the Bride (1950), newly married Kay Dunstan announces that she and her husband are going to have a baby, leaving her father, Stanley Banks, having to come to grips with becoming a grandfather.
Middle class family man Stanley Banks reminisces on events of the past year: One afternoon, returning from the office feeling happy and energetic, Stanley’s routine is interrupted when his wife Ellie tells him that they are having dinner with their daughter Kay and her husband, Buckley Dunstan, to hear some important news. Although Stanley is certain that it concerns Buckley’s business, the newlyweds reveal that Kay is expecting a baby. Buckley’s parents, Doris and Herbert, are delighted, as is Ellie, but Stanley broods that he is too young and vibrant to be a grandfather. Soon Ellie, flush with excitement, throws Kay a baby shower, something Stanley thinks is highway robbery not punishable by law. Later, Ellie suggests that they remodel their house to enable Kay, Buckley and the baby to move in with them, but Stanley puts his foot down. Ellie is near tears when the wealthy Dunstons announce that they are planning to add a wing to their home for the couple, but is overjoyed when Kay and Buckley reveal that they have just bought their own little house, enabling Ellie to have free rein helping Kay decorate.