As a favor to Jed Mr. Drysdale arranges for a playboy bank director (who normally only dates women half his age) to come court Granny, while Jed goes out with a beautiful woman who dates rich older men.

Jethro decides to become a "double naught" spy and converts the family's truck into his idea of a Bondmobile. But he becomes the unwitting pawn in another banker's scheme.