Arnold has a really bad day - the city is suffering from a heatwave, and whatever he does, Arnold just can't seem to get cool.

Grandpa, Arnold, and Gerald are all going on an old fashioned camping trip... until Big Bob, Helga, and Phoebe show up with luxurious camping equipment.

Arnold has trouble with the basketball coach and his favored son.

Gerald's secret is revealed; he doesn't know how to ride a bike, so Arnold teaches him how.

Schoolyard tradition has it that on the first Monday of June each year, the fifth graders throw the fourth graders into trash cans. So, Arnold and Gerald try to make a run for it. As more people are thrown into trash cans and the fifth graders know all the routes, Arnold and Gerald find out eluding the fifth graders is harder that they thought.

Gerald and Arnold get on the case when Timberly loses her Barney-esque doll.

Wolfgang and his gang of fifth graders challenge Arnold and his friends to a football game, but he has to first persuade them that his plays are good enough for them to win.

Rhonda and Nadine fall out over working on a project at school, leaving Arnold to work with both of them separately.

Arnold and his friends get Coach Wittenberg to be their new bowling coach.

After creating an idea for a parade float, Arnold is confident of it showing up in a parade.

A lounge singer moves into the Sunset Arms after renouncing his songwriter, who also moves there.

When Bob has to go to a business meeting, Miriam and Helga are forced to go on the family road trip by themselves.

A. All the kids are paired with adults with interesting jobs except Arnold, who is forced to spend time with the Jolly Olly, the Ice Cream Man.

Helga becomes a model, but she quits after she gets irritated at everyone dressing like her.