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

News of the tornado reaches Sheldon and Mary in Germany. Also, with the Cooper house in chaos, Missy steps up.

Sheldon helps his roommate try to beat the stock market, Missy and Billy Sparks throw a party, and Mary finds a new church.

Sheldon leaves East Texas for the California Institute of Technology following the death of his father.

George Sr. gets an exciting job offer, and Sheldon prepares for his move to California.

Sheldon and Mary head to Germany while the rest of the Cooper family braves a tornado that is heading straight for Medford.

The Coopers can't be found as Mandy goes into labor. Also, Sheldon is excited about the launch of his database.

Sheldon realizes he is the weakest student in his class; Meemaw is looking to expand her gambling business.

Missy steals her dad's truck and hits the road with her friend Paige.

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

After graduating high school, Sheldon has a breakdown when he realizes he may not be ready for college. Dale tries to make amends with Connie.

With college in sight, Sheldon is determined to ride his bike without training wheels. Also, Mary and George Sr. argue over parenting styles.

When the IRS accuses Sheldon of making a mistake, he'll stop at nothing to prove them wrong. Also, Dale is forced to get a colonoscopy and tries to convince Connie to join him.

Sheldon gets an odd request from an old friend, Paige. Also, George Sr. and Mary are caught in the middle of Connie and Dale's breakup, and Georgie comes clean to Mandy.

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

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

Sheldon explores Germany behind Mary's back, Missy attempts to pull a fast one on George Sr. and Meemaw and Dale adjust to living together.

George and Mary insist on meeting the new woman in Georgie's life. Also, Sheldon and Missy have suspicions about what's going on with their family.

Mary butts heads with Mandy's mother, Audrey, and Sheldon attempts male bonding.

Missy steps up, Mary has a surprise for George, and Sheldon finds his dorm occupied.

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.

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

Sheldon is caught in a moral dilemma when offered a bootleg copy of a computer game he can't afford. Also, Mary and Connie take Brenda out for girls' night while George Sr. and the guys watch Billy, and Missy asks Georgie to take her and Marcus on a secret date.

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

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