Marshall, Carlotta and Kathleen scheme to break up the happy Westchester marriage and drive them out of Toad Hall. Their plan has Kathleen seducing Wild Bill, while Marshall makes a move on Bootsie. But the whole plan backfires when Stanley figures out what's going on and has Wild Bill pretend to be smitten with Carlotta.

When it's revealed that there's a large inheritance waiting for the first Beck grandchild, Marshall, Carlotta and Kathleen begin to scheme. Kathleen takes the opportunity to try to seduce Stanley. Marshall and Carlotta, on the other hand, decide to adopt a child, thinking that an adopted child would still be a Beck grandchild. Afraid that Bootsie will become pregnant before the adoption can be completed, the trio decide to keep the Westchesters apart -- Kathleen and Carlotta have slumber parties with Bootsie while Marshall keeps Wild Bill awake, telling him of his problems.

The Becks are delighted when they learn that Toad Hall is regarded as a historical site, thus entitling them to tax exemption. However, they don't anticipate that as a historical site, they are required by law to conduct tours of the family mansion.

At the reading of cryogenically frozen family patriarch Big Guy Beck's video-will, the Becks learn that Big Guy had an illegitimate son -- used RV dealer Wild Bill Westchester. To make matters even more embarrassing for the Becks, they learn that in order to receive their inheritance, they'll have to live ""in peace and harmony"" with Wild Bill and his ""lovely and whimsical"" wife, Bootsie, in Toad Hall, the family mansion. Independently wealthy son Stanley greets the Westchesters with open arms. However, snobby son Marshall, his wife, Carlotta, and Big Guy's widow, Kathleen are overwrought with embarrassment and the three scheme to get the Westchesters out of the picture.

Marshall, Carlotta, and Kathleen devise a scheme to disprove Wild Bill's relation to big guy -- so they drug him and steal a half gallon of his blood to use for testing. But in the end, all it proves is that Wild Bill actually is Big Guy's son.

The latest installment of Big Guy's video will includes a promise of a $10,000 bonus for the family member who finds work and gets the best report. Marshall and Wild Bill get jobs at an RV dealership; Carlotta becomes a tour guide; Bootsie starts a fingernail and undewear franchise; and Kathleen recieves promotion after promotion at the State Bank. It's smooth sailing until Bootsie reveals that she's set up an in-home presentation on the same night that the Southern 500 Committee is scheduled to arrive for a dinner meeting regarding Marshall and Carlotta's failure to pay their annual dues.