Naomi and Vint read in a magazine how it will cost $168,000 dollars to raise their kid. So they set about coming up with a scheme to make some fast money. Just then Bubba comes home feeling bad, and Mama gives him some of her "Mother Harper's Tonic" and that gives Vint and Naomi an idea. They could sell the tonic and make a fortune. So Naomi gets some bottles from the recycling bin at Food Circus and they start to bottle it. It sells fast and everyone wants more. So Bubba takes it to his swim meet and Thelma takes it with her to the Church Ladies League meeting. ...
Vinton has been spending his evenings away from Naomi, educating a new locksmith. When Mama and Iola find out that the new trainee is a beautiful young woman, they fear the worst, and try to shield the pregnant Naomi from this information.
Vint and Naomi have been following the TV show, "Tri-State's Most Wanted", in order to earn big rewards by catching crooks. But after seeing him appear on the show, Mama believes that the handsome new actor at the Pepperpot Playhouse is one of the criminals.
Mama is not satisfied with the advice she receives from a local consumer affairs radio show. She calls in to complain, and offers advice to other callers on how to resolve their complaints. The radio station is so impressed by Mama's knowledge of local merchants and products, that they give her a radio program of her own.
Vint fears he will lose his job when Kwik Keys is taken over by the Bernice Corporation and turned into a frozen yogurt shop. But then, Mama discovers that she actually has stock shares in Bernice -- and a say in whether they can take over Kwik Keys.
After Mama is turned down for a bank loan for a new furnace, she slips and falls on a roll of pennies left on the floor of the bank. Her injuries are minor, but the rest of the family encourages Mama to sue the bank for a million dollars for negligence.
Bubba has a photography project for school. The whole family participates. But when Bubba's secret gag photo of Mama's head on a pin-up model's body accidentally gets printed on a flyer for a senior citizens' dance, confusion and chaos ensue.
When Vint is called away by a sudden work emergency, Mama --who would rather be at a bingo game-- has to substitute as Naomi's childbirth coach. Mama is disbelieving about natural childbirth, and inadvertently scares the class by telling them about what childbirth and parenthood will really be like.
Vint and Naomi have finally found a new place to live, a rundown mobile home; and are preparing to move to a trailer park. However, the unsightly trailer breaks down in Mama's driveway just seconds before Mama has to entertain the Dames, a snobbish women's club Mama wants to join.
In the Series Finale, Mama is trying to calm Naomi down, who freaks out when Vint leaves her to go to work. Mama tells her the story of how great Carl was when Vint was born. Of course she's lying just to make Naomi feel better. She then tells Iola the real story. Seems she had to take the bus to the hospital when Carl refused to come out of the bathroom, as she went into to labor. Bubba, who's trying to make the college Water Polo team, is driving Mama nuts by running up and down the stairs. When Naomi finally goes into labor, after seemingly being pregnant forever, ...