7.5/10223 votes#1 - Tornado!
Season 4 Episode 1 - Aired 9/2/2021
A tornado puts the school on lockdown. The kids write fan fiction about faculty members.
Director: Katie Locke O'Brien
Writer: Michael Patrick O'Brien
8.1/10184 votes#2 - Sweatpants
Season 4 Episode 2 - Aired 9/2/2021
Jack has the students form a fake cult to sabotage Principal Durbin's new school uniforms.
Director: Katie Locke O'Brien
Writer: Rob Klein
7.3/10160 votes#3 - An Oath to Rusty
Season 4 Episode 3 - Aired 9/2/2021
Jack attempts to get closer with the guys at work. Helen helps Principal Durbin grow a backbone.
Director: Katie Locke O'Brien
Writer: Shelly Gossman
7.8/10159 votes#4 - Tons of Rue
Season 4 Episode 4 - Aired 9/2/2021
Jack tries to expose his allegedly reformed deadbeat dad. A witch shakes up the Whitlock High staff.
Director: N/A
Writer: N/A
7.7/10152 votes#5 - The Perfect Date From Hell
Season 4 Episode 5 - Aired 9/2/2021
Jack finds out he's his girlfriend's therapy homework. Principal Durbin goes undercover.
Director: N/A
Writer: N/A
7.3/10183 votes#6 - Love, for Lack of a Better Term
Season 4 Episode 6 - Aired 9/2/2021
Victor sends Ashlanda a risqué photo. Grace and Anthony try to set up Mary and Principal Durbin.
Director: N/A
Writer: N/A
7.2/10149 votes#7 - Malachi
Season 4 Episode 7 - Aired 9/2/2021
A jealous Jack crashes his girlfriend's dinner with a male friend. Helen rebounds after a breakup.
Director: N/A
Writer: N/A
8.1/10169 votes#8 - The Harvard Pen
Season 4 Episode 8 - Aired 9/2/2021
Jack's students steal his Harvard pen. Principal Durbin fails the superintendent's inspection.
Director: N/A
Writer: N/A
The Best Episodes of A.P. Bio Season 4
Every episode of A.P. Bio Season 4 ranked from best to worst. Discover the Best Episodes of A.P. Bio Season 4!
When disgraced Harvard philosophy scholar Jack Griffin loses out on his dream job, he is forced to return to Toledo, Ohio, and work as a...
Genre:Comedy
Season 4 Ratings Summary
"Tornado!" is the best rated episode of "A.P. Bio" season 4. It scored 7.5/10 based on 223 votes. Directed by Katie Locke O'Brien and written by Michael Patrick O'Brien, it aired on 9/2/2021. This episode is rated 0.6 points higher than the second-best, "Sweatpants".