Earl tells Baby the story of how he came into the world: A story in which he asks for a raise from Mr. Richfield and has to choose between buying Fran a new cookware set or buying himself a 90-inch television set.
Fran grows sick of her marital life, but Earl has no idea what the real problem is. So she leaves for a while in order for Earl to better himself, which he does by taking a class on the so-called "Mating Dance".
It is a dinosaur custom that when they turn 72, they are to be hurled off a cliff into a tar pit. Ethyl's time is coming near, and Earl is looking forward to tossing her - until Robbie realizes Ethyl still has a lot to live for.
At the market, a T-Rex named Gary hits on Fran. He then, according to dinosaur law, shows up outside the house one day to challenge Earl to a fight to the death. The prize: Fran.
The Howling is a sacred dinosaur tradition in which, to avert prophesied disaster, male dinosaurs of age climb a cliff and howl at the moon. But when Robbie refuses to participate, it looks like he has brought about the apocalypse.
When Baby bounces against a wall, he gets a mysterious bump that morphs into a majestic golden horn. It turns out that the horn is the sign of the prophesied leader of the dinosaurs, so Baby becomes their king.
Fran thinks that the family spends far too much time in front of the TV. So when a freak accident destroys it, she sees it as a blessing - but Earl is looking for another way out and enters the family in a TV game show.
Charlene notices that the other females are getting their tails before her. So while Fran tries to teach her that a beautiful body doesn't make a beautiful mind, Charlene thinks of quick fixes and the males in the house tease.
It's Fran and Earl's twentieth anniversary. To make it very special, Earl buys a delicacy for dinner: A species called grapdelites which are nearly extinct. Robbie fights to save their species.
To drive up employee morale, Mr. Richfield decides to create an idiot example of perfection and call him the "Employee of the Month". And who should make the grade but Earl?
Fran and Earl go out to dinner, leaving Robbie and Charlene alone to watch Baby. However, that's the perfect opportunity for a group of oppressed food items to revolt by kidnapping the youths.
Robbie goes to see the Job Wizard who dictates what careers everybody has for the rest of their lives. He hopes to be picked to be a rock legend but his dream falls flat when it's announced he's going to be a tree pusher like his father.
After meeting new neighbor Monica, Fran learns that dinosaurs have to renew their marriage licenses after a certain amount of time - and then realizes that her marriage to Earl is technically invalid.
Robbie realizes he has no idea how to talk to girls. Desperate, he asks for help from Spike, a troublemaker who does very well with the ladies. Unfortunately, Spike's advice causes more harm for Robbie than good.
After Fran realizes she switched nests with another mother, she starts to think that Baby isn't their baby. When she meets the Molehill baby, she realizes that he looks just like Earl. The two families try a baby swap.
Monica gets a job pushing down trees for Wesayso but is fired after refusing the advances of a male co-worker. Determined not to let the males in the workforce hold her down, she takes the matter to court.
