Hey Arnold!

The kids find out that Big Bob is planning on cutting down the oldest tree in the neighborhood. Mr. Simmons, a kind, innovative, and inspiring man, is accepted by Arnold and the rest of the class as their new teacher.

Helga experiences a day free of her love/hate obsession. Gerald reveals he can't ride a bike and Arnold helps him overcome his fear and humiliation.

Arnold and Helga are editors of competing school newspapers. Harold softens when he finds a lost cat and then refuses to give it up to its rightful owner. Arnold eventually persuades Harold to give up the kitty.

Arnold and Gerald must get through the traditional day of hazing 4th graders. After Eugene's pet fish is accidentally killed by Arnold's yo-yo, Arnold vows to get unlucky Eugene a pet that will endure.

After being scratched by an organ grinder's monkey, Helga is convinced her days are numbered. Arnold and Gerald attempt to catch the biggest fish in the city pond.

On a creepy Halloween night, the neighborhood comes down with alien fever when Arnold and Gerald broadcast a mock radio show warning of a spaceship landing.

After Arnold saves Sid from injury, Sid devotes himself to paying Arnold back with unending kindness. Arnold and Gerald play hookey but their day is thwarted by intense paranoia.

Arnold and Gerald catch a suspicious man on film and they follow him clue-to-clue. In an effort to win a class poetry contest, Phoebe copies a poem from a book. Thereafter she is haunted by her guilty conscience.

Arnold and the rest of his fourth grade friends play the seemingly unbeatable fifth graders in touch football. Gerald, the middle child in his family, is feeling so neglected that he moves into Arnold's boarding house.

Gerald gets in over his financial head selling a sure-fire product. Rhonda and Nadine have a falling-out over working on a project at school.

Arnold trains Grandpa to take on his old Chinese checkers nemesis, Robby Fisher. Miriam decides to visit her mother after learning that Big Bob and Helga are on vacation at the same time.

Like his Grandfather before him, Arnold competes in the annual block party eating contest. After intense training, Fashion and image-aware Rhonda fails the eye chart and gets glasses.

Helga hatches a plan to "hire" Stinky to act as her boyfriend in hopes of making Arnold jealous. When Miss Slovak calls in sick, in steps a substitute teacher named Miss Felter and Arnold is instantly smitten.

When it's time for Helga to step down as Hall Monitor, she chooses Phoebe as her replacement. As Harold prepares for his Bar Mitzvah, he becomes increasingly nervous.

Arnold and Gerald are so desperate to bowl in an upcoming tournament. Arnold and Gerald stumble upon an old pair of eye glasses which may belong to a deceased boarder named Four-eyed Jack.

Eugene becomes disillusioned about his life after learning that his favorite movie action hero doesn't do his own stunts. Arnold helps him out of his funk. Arnold and the gang go on a class trip to the opera.

After happening upon a snotty rich kid who is legendary for winning the annual toy boat race, Arnold and Gerald decide to enter the race. Fed up with Principal Wartz's budget cuts, the teachers decide to go out on Strike.

Arnold and Gerald both get jobs working for Mrs. Vitello in her flower shop. Arnold designs a fantastic float for the City Day Parade, but the school has no money to build it.

When Timberly's doll is kidnapped, Gerald and Arnold track it down. A new classmate is tormented by Helga and the other girls, but is eventually accepted.