Mary bans Sheldon from reading a mature comic book. Sheldon decides it's time to stop living under Mary's thumb.

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

A battle erupts between the Coopers and Sparks when the Sparks' new dog terrorises Sheldon.

While Sheldon is busy obsessing over the status of Meemaw's budding relationship with his mentor Dr John Sturgis, George and Mary attempt to build a bond with their other children.

Meemaw is pursued by two gentlemen callers and decides to date them both at the same time, so Sheldon interferes with her romantic entanglements and forces her to set some ground rules.

Sheldon dismantles the fridge to stop it making an annoying humming noise but must pay for the damage he has done.

When Sheldon's mentor Dr John Sturgis bonds with Paige, another ten-year-old genius, Sheldon is overcome by jealousy.

When Mary's usually robust religious faith is shaken by a tragedy in the community, Sheldon becomes an unlikely ally.

George Sr asks Sheldon to keep a secret from Mary but the stress of not being honest drives Sheldon to hide at Tam's house.

Dr Sturgis recommends Missy and Sheldon for a study on twins, but Mary isn't pleased when the results go to Sheldon's head.

Mary and Sheldon's drama teacher Mr Lundy clash over plans for a Halloween haunted house fundraiser for the church.