The daily life of Arnold--a fourth-grader with a wild imagination, street smarts and a head shaped like a football.
The best episode of "Hey Arnold!" season 4 is "Full Moon", rated 7/10 from 136 user votes. It was directed by Frank Weiss, Mario Piluso and written by Steve Viksten. "Full Moon" aired on 3/10/1999 and is rated 0.2 point(s) higher than the second highest rated, "Student Teacher".
Harold, Sid, and Stinky all moon Principal Wartz, but Arnold is blamed, even though he was just an innocent bystander.
Director: Frank Weiss, Mario Piluso
Writer: Steve Viksten
Helga's sister Olga comes home for spring break and becomes a classroom aid in Helga's class, much to Helga's chagrin.
Director: Frank Weiss, Chris Headrick
Writer: Steve Viksten, Michelle Lamoreaux
After Sid works off a debt with loan shark Big Gino, the two become friends, but when Sid is told to give Arnold a swirlie, he has to choose between the two.
Director: Christine Kolosov, Tim Parsons
Writer: Joe Purdy
Gerald's older brother Jamie O has a sudden burst of kindness when he finds a girlfriend, but Arnold and Gerald soon find out that the girl is just using Jamie O.
Director: Christine Kolosov, Mike Svayko
Writer: Michelle Lamoreaux
After losing Eugene's birthday party invitations, Arnold feels obliged to throw him another party, but it doesn't work out.
Director: Sherm Cohen, Christine Kolosov
Writer: Craig Bartlett
Stinky grows a huge pumpkin to enter in a city competition.
Director: Frank Weiss, Mario Piluso
Writer: Joe Purdy
After Bob pops his spine, Miriam runs Big Bob's Beepers. She gets in over her head and forgets about her family.
Director: Frank Weiss, Chris Headrick
Writer: Michelle Lamoreaux
Arnold finds out that Oskar is illiterate and tries to teach him to read.
Director: Frank Weiss, Chris Headrick
Writer: Joe Purdy
Helga wants to show Arnold that she can be as sophisticated as Lila is by taking him, Gerald, and Phoebe out to dinner with a coupon she won. She devises a plan to get out of paying when she discovers they're at the wrong restaurant.
Director: Frank Weiss, Chris Headrick
Writer: Steve Viksten
Phoebe is promoted to the sixth grade, but realizes that her new so-called "friends" are just using her to do their homework.
Director: Christine Kolosov, Mike Svayko
Writer: Michelle Lamoreaux
A sleep-talking Helga confides into Bob's parrot about her love for Arnold. The next day, the parrot flies into Arnold's window, and it is up to Helga to get it.
Director: Frank Weiss, Kurt Dumas
Writer: Antoinette Stella
Crisis strikes when Gerald's little sister, Timberly, eats a stock of chocolate turtles that he and Arnold are supposed to sell for a local scout organization.
Director: Christine Kolosov, Mike Svayko
Writer: Craig Bartlett
Helga tries to separate Arnold from Lila while at the annual Cheese Fair.
Director: Frank Weiss, Mario Piluso
Writer: Steve Viksten
Harold, after discovering his friends think he is obese, decides to go on a weight-loss cruise. When he comes back, though, he is noticeably larger.
Director: Christine Kolosov, Chris Robertson
Writer: Steve Viksten
After Grandpa tells Arnold that he never got his grade school diploma, Arnold convinces him to come to go back to school at P.S. 118.
Director: Frank Weiss, Mario Piluso
Writer: Craig Bartlett
Arnold and Helga must care for an egg for a school project about parenting. Meanwhile, Rhonda and Harold are project partners and must also take care of an egg.
Director: N/A
Writer: Steve Viksten, Michelle Lamoreaux, Celia Bonaduce
Helga becomes a model, but she quits after she gets irritated at everyone dressing like her.
Director: Christine Kolosov, Tim Parsons
Writer: Jonathan Greenberg
Arnold's classmates are tired of constantly telling them the right thing to do, so he stops giving them advice. Nevertheless, when his classmates get into sticky situations, they are in desperate need of his advice.
Director: Frank Weiss, Chris Headrick
Writer: Michelle Lamoreaux
After getting in a car accident, Bob and Grandpa face off on the golf green, with the loser having to pay for the damage to both cars.
Director: Kurt Dumas
Writer: Joe Purdy
Rhonda attends a finishing school, but is far from impressive with her stroppy attitude, and seeks help from fellow student Big Patty.
Director: N/A
Writer: N/A
Arnold's bland country cousin, Arnie, comes to visit. Arnold begins to notice that Arnie and Lila show interest in each other, making him jealous.
Director: N/A
Writer: N/A
Oskar has to take care of his infant cousin-in-law (also named Oskar), while both Susie and her cousin are gone.
Director: N/A
Writer: N/A
Phil's twin sister comes for a visit, bringing along an unsettled conflict between them.
Director: N/A
Writer: N/A
Arnold and the gang are part of a synchronized swimming team led by Coach Wittenburg.
Director: N/A
Writer: N/A
After eating pork rinds, Helga sleepwalks, uttering her secret about Arnold as she does so.
Director: N/A
Writer: N/A