It's 1989 and 9-year-old Sheldon Cooper has skipped four grades to start high school along with his less-intellectual older brother. As he struggles to be understood by his family, classmates and neighbours, his mother arms him with the best tool she can come up with: reminding bullies his dad is the football coach and his brother is on the team. His twin sister doesn't share his exceptional mind, but she has a much clearer vision of what life has in store for the young genius. Jim Parsons, who plays the adult version of Sheldon on "The Big Bang Theory," narrates.
After graduating high school, Sheldon has a breakdown when he realises he may not be ready for college. Also, Dale tries to make amends with Meemaw. S4, Ep1
A Docent, A Little Lady. While Sheldon volunteers at a local train museum, Missy embarks on a new stage of womanhood, and Georgie discovers his mother's guilty pleasure. S4, Ep2
Training Wheels. Sheldon is determined to ride his bike without training wheels and has Missy teach him. Mary and George argue over parenting styles. S4, Ep3
Sheldon ends up in a fierce competition with Paige after their mums force them to attend Vacation Bible School. Georgie makes a questionable purchase. S4, Ep4
A Musty Crypt. While Mary and George take a trip, Georgie freaks out when his girlfriend thinks she's pregnant. Dale and Meemaw work out their relationship issues. S4, Ep5
Freshman Orientation. While college orientation does not go as Sheldon planned, Mary is mistaken for a university student and invited to a party. S4, Ep6
A Philosophy Class. Sheldon's first day of college is derailed by his new philosophy teacher. Mary and Brenda live vicariously through Missy's first day of middle school. S4, Ep7
An Existential Crisis. Meemaw takes matters into her own hands when Sheldon's philosophy teacher, Professor Ericson, sends him into a tailspin. S4, Ep8
Crappy Frozen Ice Cream. Sheldon and his dad dine with President Hagemeyer and a university benefactor. Also, Dale and his ex-wife invite Meemaw to their son's wedding. S4, Ep9
Cowboy Aerobics. Sheldon campaigns to become Dr. Linkletter's lab assistant. Georgie enlists the drama teacher, to help with a surprising business venture. S4, Ep10
A Pager, A Club. Dr. Linkletter pushes Sheldon to make friends with his fellow students, and Georgie gets a pager. S4, Ep11
A Box Of Treasure. Sheldon, Dr. Linkletter and Meemaw team up on a science experiment. Mary is jealous that Pastor Jeff and Brenda are spending so much time together. S4, Ep12
The Geezer Bus And A New Model. Sheldon refuses to ride in a car after getting into an accident with Meemaw. Meemaw is forced to take the church shuttle. S4, Ep13
Mitch's Son. When the IRS accuses Sheldon of making a mistake, he stops at nothing to prove them wrong. Meanwhile, Dale is forced to get a colonoscopy. S4, Ep14
A Virus, Heartbreak. Sheldon faces consequences after installing a pirated computer game. Mary and Meemaw take Brenda out for Girls Night, and George watches Billy. S4, Ep15
A Second Prodigy. Sheldon is at odds with Paige once again when she considers enrolling at East Texas Tech. Mary seeks the advice of June when looking for a change. S4, Ep16
The Coopers discuss the possibilities of black holes and alternate universes when Dr. Sturgis comes over for dinner. S4, Ep17
The Wild And Woolly World. Missy's first heartbreak triggers a series of events that lead the Cooper family to the brink. S4, Ep18