When Sheldon is no longer academically challenged at Medford High, he audits a college class taught by Dr. John Sturgis.

While Sheldon is busy keeping tabs on Connie’s budding relationship with Dr. Sturgis, George Sr. and Mary attempt to bond with their other children.

When Connie is pursued by two gentlemen callers, Sheldon interferes, forcing her to set some ground rules.

When Dr. Sturgis bonds with Paige, another 10-year-old genius, Sheldon’s jealousy leads Connie to intervene. Mary invites Paige’s family over for a play date.

When Dr. Sturgis recommends Sheldon and Missy for a university research study on twins, Mary is unhappy when the test results go to Sheldon's head.

Sheldon gets into trouble with fellow child genius, Paige at the science museum. George is forced to play therapist to Paige’s bickering parents. Mary, Georgie and Missy help Connie with a garage sale.

Sheldon studies his family for a psychology project. Thanksgiving dinner turns into a family fight when George Sr. is offered a job in Oklahoma.

When Sheldon learns that people with stunted childhoods can turn into social outcasts, he tries to act. Connie and Dr. Sturgis' relationship is tested when she teaches him how to drive.

Sheldon attempts to build a nuclear reactor. Also, a university cocktail party gets heated when Dr. Sturgis’ colleague, Dr. Linkletter, flirts with Connie, and Georgie is heartbroken when he learns Veronica has a boyfriend.

Sheldon and Dr. Sturgis have their first fight when Dr. Sturgis marks a question wrong on Sheldon's test. Also, Mary takes over for Pastor Jeff when he's out sick.

Sheldon moves in with Dr. Sturgis for the weekend to see what his life will be like in college. Also, a lonely Mary tries to bond with the other Coopers during Sheldon's absence.

Unhappy that school funds are going towards football rather than academics, Sheldon decides to run for class president.

Georgie is thrilled when Veronica stays at the Coopers' house for a few days. Also, Connie and Dr. Sturgis celebrate their one-year anniversary.

The Coopers help Pastor Jeff through a rough patch in his marriage. Also, Sheldon pressures church members for donations when Mary takes him to work for a day.

Sheldon invites the entire school to a party for the Nobel Prize announcements. Also, Connie learns more about Dr. Sturgis' past, and Georgie's desire for cable TV leads to a standoff between him and George Sr.

After being released from the mental hospital, Dr. Sturgis unexpectedly breaks up with Connie.

A church carnival leads Missy to try out for the baseball team. Also, Connie struggles after her breakup with Dr. Sturgis.

Sheldon starts an internet flame war, and Missy stands up to the boys on her baseball team. Also, Connie is unhappy when George Sr. spends time with her new boyfriend.

The University makes George Sr. a lucrative job offer in the hopes of recruiting Sheldon. Also, Georgie gets a job working for Connie's new boyfriend, and Mary is determined to rid her home of greed.

Mary gets Pastor Jeff involved when Sheldon isn't invited to Billy's birthday party. Also, George Sr. has "male-bonding time" with Dr. Sturgis.

Sheldon fakes being sick to avoid a swim test at school. Also, Dr. Sturgis spies on Connie's new boyfriend.

Sheldon learns to listen when an emotional Paige struggles with her parents’ divorce. George Sr. is furious when Georgie tries to buy his way out of chores.

George Sr. and Georgie go camping with Connie's new boyfriend, Dale, but things get complicated when her ex-boyfriend, Dr. Sturgis, tags along. Also, Sheldon and Missy invent a super-game.

Connie meets Dale’s ex-wife, June. Sheldon is forced to work on a group project with reluctant college students.

Sheldon visits CalTech for the very first time. Also, Georgie is furious when Mary listens in on a phone call with his girlfriend, and Connie tries to cheer up a jealous Missy.

Dr. Sturgis is furious when Sheldon accuses him of plagiarism. Also, Mary sets out to find a “girl trophy” for Missy’s end-of-season baseball ceremony, and Georgie has an awkward run-in with Veronica while on a date with his new girlfriend, Jana.

Sheldon has a scientific breakthrough at the dentist's office. Also, Dale and Connie go to the casino, and Georgie makes a big mistake when Dale leaves him in charge of the store

Sheldon discovers that Mary's been keeping a secret about his future. Also, Connie is furious when she learns Dale fired Georgie.

College orientation does not go as Sheldon planned. Also, Mary is invited to a party when she's mistaken for a university student, and George Sr. helps Pastor Jeff set up a children's nursery.

Connie takes matters into her own hands when Sheldon's philosophy teacher, Professor Ericson, sends him into a tailspin. Also, George Sr. learns Georgie has been cutting class.

Sheldon, Dr. Linkletter and Connie team up on a science experiment. Also, Mary is jealous that Pastor Jeff and Brenda are spending time together, and Georgie has a new side hustle.

Sheldon refuses to ride in a car after getting into an accident with Connie. Also, Missy uses their trauma to her advantage at school and Connie is forced to take the church shuttle while her car is in the shop.

Sheldon finds himself at odds with Paige once again when she considers enrolling at East Texas Tech. Also, Mary seeks June's advice when looking for a change.

The Coopers discuss the possibilities of black holes and alternate universes when Dr. Sturgis comes over for dinner.

Sheldon and Missy both run away from home, and Mary gets upsetting news about George Sr.

Sheldon tries to convince Dr. Sturgis to return to the university. Also, Georgie upsets the family when he makes a life-changing decision.

Sheldon and Dr. Linkletter struggle to solve an equation. Also, Georgie has a solution for Connie's business woes, and George Sr. gives advice on Missy's love life.

Missy asks some uncomfortable questions at church, and Connie and Georgie go into business together.

Sheldon gets a dorm room all to himself. Also, Connie gains an unwanted business partner.

Sheldon butts heads with Dr. Lee, a new scientist in the lab. Also, Mary is given a lotto ticket.

Sheldon joins Dr. Linkletter and Dr. Sturgis on a science road trip. Also, Georgie continues to lie about his age.

Sheldon copes with the death of a hero. Also, Missy wants to babysit, and Georgie struggles with his big secret.

Sheldon must choose sides in an ethical dilemma. Also, Mary tries her hand at writing and Mandy needs a new place to live.

Sheldon makes a terrifying mathematical discovery while tutoring Billy. Also, Mary is jealous of Missy's relationship with Mandy and Connie.

Sheldon considers dropping out of college to focus on building his database. Also, George Sr. is frustrated when someone else gets credit for his football wins.

Sheldon learns the university is building a database without him. Also, Mary takes care of a bedridden Mandy and Meemaw.

Sheldon confronts the failure of his database. Also, Georgie and Mandy struggle as new parents and Missy feels forgotten.

Sheldon wants to search for life on other planets and Mandy answers Georgie's marriage proposal. Also, Missy is caught between two friends.

Mandy gets an exciting job opportunity and Sheldon worries that he's falling behind. Also, Georgie takes his daughter to work.

The gambling room gets broken into and Sheldon wants to study abroad. Also, Missy makes a new friend.

Sheldon's published paper leads to a frenzy of grad school recruiting, and Georgie tries to speak more properly in front of his daughter.

George Sr. is worried that Mary wants another baby and gets a vasectomy behind her back. Meanwhile, Drs. Linkletter and Sturgis go to Sheldon for science tutoring.

The Cooper family grapples with the death of George Cooper Sr.