Potter faces the unpleasant task of grounding one of his ace helicopter pilots.
The Walton household is upset when John-Boy brings home a teenage college-student genius with a photographic memory.
Grady feels out of place after moving in with his daughter and her husband, both of whom are on the UCLA faculty.
Togetherness can be really funny when the whole Bradford household is quarantined, including Nancy's blind date, after Mary's boyfriend comes down with a mysterious ailment.