Granny is feeling lonely, so the family tries to get her riled up so she can start a fight with someone, since that always makes her feel better. The plan backfires though, and the family apologized to Granny. So to get Granny in higher spirits, Jed invites the Drysdales and Jane to supper. But the chairman of the board, Marty Van Ransohoff stops by and invites the Drysdales to dinner on his yacht. He also mentions inviting the Clampetts. Drysdale doesn’t want Marty to see the hillbillies and makes up excuses as to why they can’t come. Drysdale tells Jed that he and his wife can’t make it to their dinner, and will come another time. But the plans get rearranged, and Jane and Marty end up going to the Clampett mansion for dinner. When Drysdale hears this, he worries he’ll get fired. Marty doesn’t know what to expect when he arrives at the mansion, and when he sees the hillbillies, he believes the Clampetts are in costume and this is a themed party. Marty and Jane decide to join the fun. After the night, Marty is tremendously impressed with the Clampetts and their party, having the best time he’s had in a while.