Katherine Von Till

Sheldon’s germophobia lands him in detention when flu season hits Medford and he takes extreme measures to remain healthy.

Mary clashes with Sheldon’s drama teacher, Mr. Lundy (returning guest star JASON ALEXANDER) over plans for a Halloween haunted house fundraiser for the church. Also, Georgie falls for a rebellious teenage girl that Sheldon is tutoring.

Things spiral out of control when Sheldon boycotts his favorite bread company and ends up on the local news. Meanwhile, Georgie offers Veronica a shoulder to cry on when she’s dumped by her boyfriend.

Sheldon’s database invention puts him at odds with the university. Also, the church takes issue with Meemaw’s video store.

After graduating high school, Sheldon has a breakdown when he realizes he may not be ready for college. Also, Dale (recurring guest star CRAIG T. NELSON) tries to make amends with Meemaw in the season four premiere episode.