The Baby becomes sick from a dirty pacifier and a visit to the modern doctor has the family suspecting he is selling them high priced snake oil.

The males, including Earl, Robbie, and the Baby, go into the wilderness to rediscover their ""reptiles within,"" while back home the girls warm their cold blood with the boys' beer.

Robbie poses as a space alien and orders Earl to get involved in cleaning up Earth, never imagining that he would quit his job to launch an environmental crusade.

The Baby swears there's a monster under his bed, but no one believes him--until it starts dragging victims into its hole.

Questions about life's meaning plague the population, so the Elders dictate a belief system called "Potatoism."

Earl drives Ethyl to her reunion, and the kids drive Fran crazy when she tries to get them to pose for a portrait.