E1 - Big Mouth's Going to High School (But Not for Nine More Episodes)

Aired: October 20, 2023

With two months left in eighth grade, the incoming freshmen tour their new high school with junior hosts while Jay evades his terrifying brothers.

E2 - Epididymitis

Aired: October 20, 2023

A doctor puts Andrew on testicular rest, Nick asks Jay to help him get in shape for high school and Jessi becomes fascinated by Caitlin's breastfeeding.

E3 - The Ambition Gremlin

Aired: October 20, 2023

With no distractions, Andrew's schoolwork improves — winning his father's praise. Jessi goes a little too far when trying to emulate cool, mature Leah.

E4 - Day Tripping

Aired: October 20, 2023

While Andrew and Nick follow Judd to Brooklyn to score drugs, Jay gets jealous of Kurt and Lola's relationship, and Jessi oversteps at Matthew's house.

E5 - Graduation

Aired: October 20, 2023

As graduation day nears, Nick must decide if he will attend Cobblestones Academy while Andrew goes on an apology tour after being voted "Grossest Human."

E6 - The International Show

Aired: October 20, 2023

Big Mouth goes global for a very special episode as Maury and Connie take a closer look at how kids around the world experience puberty.

E7 - Get the F**k Outta My House

Aired: October 20, 2023

Andrew takes a liking to his new neighbor — and her mom. Nick wants to be more than Danni's friend, but her entanglement with Travis gets in the way.

E8 - The Bad Hookup

Aired: October 20, 2023

At their first high school party, Andrew discovers his talent for drinking games, Nick hopes for a shot with Danni, and Missy meets a potential rebound.

E9 - Panic! At the Mall

Aired: October 20, 2023

During a sleepover, Jay teaches Andrew how to defend himself against bullies. Then, Missy gets overwhelmed while back-to-school shopping with Jessi.

E10 - A Finger in Time

Aired: October 20, 2023

The Big Mouth kids start high school! Andrew looks inside himself to solve his problem with Pumbaa while dread stops Missy from attending her first day.