Big Mouth

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.

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."

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.

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.

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.

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

The voice of a slick, new tech accessory hypnotizes people into doing things they wouldn't normally do. Missy grapples with the concept of sin.

While Andrew prepares for a momentous evening with Bernie, Nick sets out to meet his secret grandfather, and Jay cooks up some romance for Matthew.

A viral quiz about naughty deeds sparks arguments and unlikely new friendships. Matthew plans a baby shower for Maury.

From itching to grooming to late blooming: There's no shortage of fodder for shame maven Rita St. Swithens in this special episode.

A DNA test leads Nick to uncover a wee family secret. Jay insists on introducing Matthew to the Bilzerian clan. Andrew puts his lovebug to the test.

After being snowed in with their families, the restless friends flock to Bridgeton's latest make-out spot. A new classmate catches Missy's eye.

While Jessi sorts through her feelings for Ali, Nick joins Devon for a boys' night, Andrew shows off his new persona, and Missy starts a rumor online.

Missy tries to show her cousins she's not a dork, Andrew takes a stand against his dad's turkey tyranny, and Jesse hopes for a Thanksgiving miracle.

Unrequited love and jealous rivalries turn the friends into seething beasts. Andrew gets a little too invested in a substitute teacher.

As Walter the love bug coaches Nick on matters of the heart, Jesse gets fired up about protesting the school's problematic mascot.

Eager to get his mojo back, the Shame Wizard drops in on swim class to torment the kids with bodily insecurities.

To get his mind off Lola, Jay begs his pals to join him in a monthlong challenge. Missy's caught off guard by a new crush.

Thirty years in the future, rich but lonely game show host Nick prepares to flee a dying Earth. But first, he has to track down the perfect plus-one.

On a trip to the 9/11 museum, Nick and Andrew sneak off to meet Jessi, Devon teaches Missy about code-switching, and Coach Steve gets a rude surprise.

After seeing their eighth grade classmates coupled up, Nick and Andrew make a play for two seventh grade girls. Jessi adjusts to life in the city.

On the last night of camp, bowel problems, a talent show and a hookup lead to hurt feelings. Back home, Jay and Lola throw a pool party.

While Jessi deals with menstrual mayhem, Nick tries to avoid showering with the guys, and Missy gets a makeover from her cousins in Atlanta.

At sleep-away camp, Jessi befriends her trans cabinmate, and Nick discovers his two best friends have a little too much in common.

The ghost of Duke Ellington takes Nick and friends on a journey back in time to 1913: the year he lost his virginity and found his true calling.

Connie gives Jessi a crash course in female pleasure, Maury tries to talk Andrew into sending a dick pic, and Nick lashes out at his new housemate.

While Nick tags along with the Gloubermans on a wild road trip to Florida, Jay discovers he's been "Home Alone'd" -- and moves in with a new family.

Cellsea goads Nick into posting a risqué video, Maury urges Matthew to speed things up with Aiden, and Jay feeds Missy ideas for her erotic fiction.

Nick is bewitched by his cool new phone. A call from "Pharmacy Boy" turns Matthew into a nervous wreck. Jay finds a Netflix show made just for him.

When a shop class mishap inspires a sexist dress code, Jessi rebels, Missy struggles to keep her alter ego in check, and Andrew gets a wake-up call.

Sappy cards. Stupid clichés. And so much pressure. For Andrew, Nick, Jessi and friends, Valentine's Day is a total freaking minefield.

Jessi and Nick dip into her dad's stash of edibles, with mind-bending results. Andrew searches for the right moment to break up with Lola.

An argument in sex ed class turns into a skit-tastic journey through the worlds of Planned Parenthood, contraceptives and STDs.

Coach Steve finally gets his chance to do sex on a lady, Nick and Andrew go on a double date, and Jessi's rebellious streak leads to big trouble.

As Nick tries to figure out whether he has a shot with Gina, a mortifying encounter with Leah sends Andrew into a spiral of shame.

A classmate's booming bosom sends the boys into a rapture -- and leaves the girls with a raging case of insecurity. Coach Steve drops a bombshell.

Andrew struggles to blend in after a growth spurt, Nick worries his hormones are out of whack, and Jessi and Jay get a taste of the teen runaway life.

The warden plans to use the prison riots to take out Changho and Miho.

Changho shifts the power dynamics in the prison to pressure Big Mouse. Doha plants a new warden.

Changho calls out Big Mouse, and an unexpected character turns up at the agreed time.

Changho stands as an informant in Seo Jaeyoung's trial, and Jihoon and Jungrak search for Changho.

Changho is in a mental hospital. Will Changho be able to hide his identity in a state of confusion?

Jaeho warns Changho to stop looking into Seo Jaeyoung's thesis. Miho is suddenly attacked.

Miho joins the prison medical volunteer program to meet Changho.

Jihoon approaches Miho to find Seo Jaeyoung's thesis. Does Miho know Changho's true identity?

Gong Jihoon makes a bet with Changho to find out his true identity.

Changho needs to maintain recognition as Big Mouse to protect Miho.

Changho is charged with drug abuse and locked up in Gucheon Prison.

Changho, who has no money and is about to lose his wife, receives a call from the mayor of Gucheon.