S4 E1 • Les exhibitionnistes

Arnold's reputation is in danger when he recieves the blame of something Harold, Sid and Stinky did.

S4 E2 • Une nouvelle prof stagiaire

Mr. Simmons has a new assistant teacher: Olga.

S4 E3 • Le parrain

After paying his debt with Big Gino, Sid and him become friends, but Arnold believes that that friendship isn't good for Sid.

S4 E4 • Jamie O. est amoureux

Gerald's brother Jamie O starts dating, and suddenly starts acting nice with Arnold and Gerald. But when Gerald finds out that the girl Jamie O is dating is just using him, he must decide to go back to a life of torment or see his brother suffering for the rest of his life.

S4 E5 • L'anniversaire d'Eugène

When Arnold feels guilty about accidentally not sending out invitations to Eugene's Birthday party (because he and Harvey missplaced mail with each other), he tries to Eugene another surprise party.

S4 E6 • Stinky jardinier

Stinky is 'down in the dumps' because he doesn't think he's special and think's he isn't good at anything, but when there is a large Vegetable contest, Stinky tries growing a pumpkin in his backyard.

S4 E7 • La reine du bipper

When Big Bob injures his back, Miriam takes the spot at his job temporarily for him. Miriam is as happy as ever, but Helga starts feeling bad

S4 E8 • Oscar apprend à lire

When Oskar cannot read various things, Arnold tries to help him by teaching him and bringing him to the library.

S4 E9 • Dîner pour quatre

Helga wins a ticket for a free dinner for four a Chez Pierre, and wants to prove to Arnold that she is sophisticated.

S4 E10 • Phoebe le petit génie

Phoebe gets a chance to skip to the sixth grade after not being challenged enough with the fourth grade, but she is taking orders from her new sixth grade 'friends'.

S4 E11 • Le perroquet qui aimait trop les vers

Big Bob gets a new parrot, and the parrot hears Helga talking about how she loves Arnold, and he escapes and lives in Arnold's house trying to recite the poem Helga said.

S4 E12 • Timberly met son grain de sel

Arnold and Gerald try selling chocolate turtles for a profit, but Timberly eats all fouth boxes of them, and they have to get money so they don't get in trouble with the Camp Fire Lass.

S4 E13 • Le cœur dans le fromage

Arnold takes Lila to the Cheese Festival, and he tries ways so she will 'like like' him, but Helga is there to stop them in their tracks ever step of the way.

S4 E14 • Au pays des régimes

When Harold overhears Stinky and Sid saying he's fat, he go's on a cruise to lose weight, but when he comes back he is very obese.

S4 E15 • Phil d'acier

Grandpa's dream was always to get a High-School Diploma, but he never did because he had to work, so Arnold tries to make him go through grade school over again to fulfill his dream.

S4 E16 • Histoires d'œuf

Arnold and Helga get paired up to raise an egg for school, but they end up losing it when they left it on the bus.

S4 E17 • Miss Chipie

Everybody starts admiring Helga's way of being angry all the time, and she and her style become the lastest fashion, but she gets annoyed and tries ways to get the spotlight off of her.

S4 E18 • Arnold casse-planète

Everybody is sick of Arnold giving them advice of their lives, so they stop listening to him, but they gets problems without his good advice.

S4 E19 • Rimes sur le green

After Grandpa and Big Bob give each other 'fenderbenders' on their cars, they try to settle who pays for the damages in a game of Golf.

S4 E20 • L'académie des belles manières

After Rhonda and Patty get in a fight, both of their parents send them to polishing school, but it appears that Patty will graduate before Rhonda.

S4 E21 • Le petit cousin

Arnold has to hang around with his boring and odd cousin, Arnie, but Arnold starts to get angry when Lila and Arnie fall in love with each other.

S4 E22 • Bébé Oscar

Suzie's cousin leaves her baby (Oskar) with Suzie and Oskar, but when Suzie has to go into work unexpectedly, Oskar has to take care of the baby.

S4 E23 • Le retour de Mytzi

Grandpa's sister unexpectedly shows up at the Boarding House, but Arnold doesn't know why she and Grandpa are always fighting with each other.

S4 E24 • Natation synchronisée

Coach Wittenberg talks Arnold, Eugene, Harold, and others to join a Synchronized Swimming team, and swim to the classic movie, 'Come Back Wayne'.

S4 E25 • Helga est somnambule

Helga sleepwalks after eating pork rinds, making her confess her love to Arnold in her sleep.

S4 E26 • Tous à la télé !

Arnold, Grandpa, Grandma, Ernie and Mr. Hyunh compete on a game show against a family that seems perfect in every way.

S4 E27 • Le cocher sans tête

Arnold tells an urban legend about a Headless Cabbie, but when Arnold and they gang go through the park (for ice cream)where the legend supposedly happened, they have weird occurrences involving the legend their travels.

S4 E28 • Vendredi 13

Arnold and Gerald really believe that they are cursed after doing a bunch of Friday The 13th legends, but it is really Wolfgang and Edmund following them and making them think that they are.

S4 E29 • Helga chez les psy

When a psychologist comes to PS 118, she notices Helga's behavior, so she calls Helga for a session. Reluctantly, she goes, and tells this psychologist about her life and how she behaved this way... Eventually, Helga ends up telling the psychologist her feelings about Arnold and gains a trust with Dr. Bliss.

S4 E30 • La disparition de Dino

The rock legend Dino Spumoni is pronounced dead, but when he comes to hide in the boarding house, Arnold convinces him to tell the truth. He does reveal that he is still alive, and puts on a concert.