Grampa has to adjust to a more "modern" way of living after the McCoy family moves from Smokey Corners, West Virginia to an inherited ranch in the San Fernando Valley of California.

Grampa starts a price war with the Poulson Egg Company, but the real trouble begins when Hassie plans a date with Mr. Poulson's son.

It's a battle of the sexes in the McCoy household over the money in the cookie jar--Grampa and Luke want a new rifle, but Kate needs a new dress for the PTA meeting.

Grampa faces selling his most prized possession, a flintlock musket handed down through generations of McCoys, when the mortgage on the farm comes due.

Grampa finds out that raising kids isn't easy at his age when he takes over the disciplining of Little Luke and Hassie.

The rest of the family thinks Grampa is taking advantage of a city fellow by selling him five acres of worthless land.