1Monkeyman!
When Arnold gives the superhero Monkeyman a taste of normal life, he's far too busy to bother helping the weak and downtrodden.
2Buses, Bikes, and Subways
Helga and Harold must return to town on their own after the bus leaves them behind after a school trip to a chocolate factory, and Helga has tickets for a wrestling match and she can't be late.
3Helga's Masquerade
Helga decides to act like Lila so Arnold will like her..
4Mr. Green Runs
Mr. Green runs for city council.
5Sid the Vampire Slayer
Sid thinks Stinky is a vampire.
6Big Sis
Olga gets into a "Big Sis" program, but her "Lil' Sis" is Lila.
7Bag of Money
Arnold, Sid and Gerald find a bag filled with money, but when Arnold loses it, everyone thinks he stole it.
8Principal Simmons
When Mr. Simmons is upset that Principal Wartz is being too strict with the students, Wartz decides to resign and he selects Mr. Simmons to take his place. The newly promoted Principal Simmons decides to make massive reforms to permit the school environment to be more liberal, though will the students at P.S. 118 appreciate his authority?
9New Bully on the Block
The kids must face two bullies when a new kid, Ludwig, returns and wants the vacant lot for himself.
10Phoebe Breaks a Leg
When Phoebe breaks a leg after being hit by a truck, Helga believes it's her fault (and it is), so she starts being nice to Phoebe. Yet when Phoebe's leg heals, she decides to stay disabled for a little longer.
11Helga's Locket
Helga inscribes her name in her Arnold locket.
12Sid and Germs
Sid becomes obsessed with cleanliness.
13Suspended
Harold is suspended and will do anything to get back into school.
14Ernie in Love
Ernie starts dating a tall model, but she doesn't want to continue dating him because of his height.
15Parents Day
Arnold asks Grandpa what really happened with his parents, and he finds out that they disappeared after they left the country on a plane, although they might still be alive.
16Summer Love
When Arnold, the boarders and the Patakis go to the beach, a girl uses Arnold to win a sandcastle competition. Ernie gets buried in the sand. Miriam and Suzie start taking dancing lessons. Grandpa thinks he's stuck on an island. Oscar starts using a metal detector to find ""treasure."" Big Bob gets a bad sunburn. Helga tries to warn Arnold that he's just being used.
17Stuck in a Tree
Arnold gets stuck in a tree with Harold and Eugene.
18Rhonda Goes Broke
Rhonda's family goes broke and they move into the boarding house.
19Beaned
Helga gets amnesia, and Arnold starts acting nice to her.
20Old Iron Man
Grandpa Phil and his old friend have been feuding for quite some time, as their friendship fell apart years ago. However, they still attempt to compete with one another as they each believe they are the better individual; though when both men decide to enter the extremely dangerous Old Iron Man triathlon, Arnold attempts to put an end to their feud, as he does not believe they should risk their lives over something so trivial.
21Arnold Visits Arnie
Arnold visits his cousin Arnie, whose friends look remarkably familiar to Anrold's
22Chocolate Boy
Chocolate Boy wants to give up chocolate.
23Harold vs. Patty
P.S. 118 is having an Arm Wrestling contest, but Harold get humiliated when he loses to Patty before the contest, so he asks Patty for some pointers on winning.
24Rich Guy
After Arnold saves the life of a rich man, the man invites Arnold and Grandpa Phil to his house. He tells Arnold that he wishes Arnold was the son he never had, but he really does have a son, but they share nothing in common.
25April Fool's Day
Arnold is sick and tired of everybody preforming their April Fool jokes on him (escpecially Helga), so he tries one of his own, but it backfires when it temporarily blinds Helga.
26Gerald's Game
Gerald is involved with his new favorite game which Arnold dislikes.
27Fishing Trip
Arnold, Gerald, Harold, Sid and Eugene go on a fishing trip with their fathers and Phil.
28Married
Rhonda uses a folding paper fortune teller to see who will marry who, and Arnold and Helga get paired up, causing them to both dream what life would be like married to each other.
29On the Lam
Stinky, Harold, and Sid are on the run after they think they blew up a police station.
30Family Man
Mr. Hyunh has Arnold pretending to be his son for his new employer.
31The Racing Mule
Mr. Hyunh, Oskar, and Ernie purchase a race horse, or so they think.
32Curly's Girl
Curly gets Rhonda to act like his girlfriend after something happens to Rhonda's mother's fur coat and he fixes it.
33The Journal (1)
Arnold finds a journal describing the adventures of his parents in the Jungle. Also, it contains a map telling where they had to go after they left him.
34The Journal (2)
Arnold finds a journal describing the adventures of his parents in the Jungle. Also, it contains a map telling where they had to go after they left him.
35Timberly Loves Arnold
Arnold does something for Timberly, causing Timberly to have a crush on Arnold. She makes Lila start to like Arnold because he has been helping Timberly.
36Eugene, Eugene!
Eugene gets the lead role in the school musical "Eugene, Eugene". But the play director cuts the parts that Eugene is a hero, and makes the parts look like he is a loser.
37Ghost Bride
Gerald's Ghost Bride story inspires the other boys to venture into the cemetery at night, but they may have bit off more than they could chew, because they're hunted down by two different Ghost Brides.
38Gerald vs. Jamie O
Gerald gets jealous because he thinks Jamie O. is trying to steal the girl he likes, when, actually, the girl likes Jamie O.
39A Day in the Life of a Classroom
After Mr. Simmons wins an award, a TV station does a documentary on how he teaches.
40Big Bob's Crisis
After Big Bob has a heart attack, he tries to become nicer.
41Phoebe's Little Problem
Phoebe gets embarrassed after she "passes gas" in front of a microphone.
42Grandpa's Packard
Grandpa's Packard is stolen from an antique car show.