The whole school has caught Yu-Gotta-Go fever, a role playing card game, except Chuckie. When he finally starts playing, it becomes an obsession, and he's hired by Angelica to do her chores in exchange for more cards. He becomes one of the school's elite players, but in the pursuit of an elusive card, he nearly parts with the valuable stamp collection that Chas has passed down to him. It's up to his friends to keep him from getting in over his head.

Tommy and the gang decide to put together a boxcar to compete in the upcoming derby. Can they make it to the finals, or will Angelica spoil their plans by entering her own car in the race?

Susie thinks that Angelica doesn't think much about the future. While Angelica worries about getting a navel piercing, Susie tries to get a scholarship to a good college. So when a school field trip accidentally leaves the two girls stranded in the big city, who will end up having the smarts to get them back safely?

Susie trains Harold to help him get a date with Angelica. He soon becomes the most wanted boy in school.

When the gang sneaks into a PG-13 movie at the mall, Angelica catches them, and she has excellent blackmail fodder. The mall then closes with them locked inside with two robbers. Chuckie imitates the main character of the movie they just saw and saves the day.

Phil has a crush on Lil's best friend and soccer teammate Wally they start hanging out more often, making Lil feel out of the loop. So Lil develops a plan to pull them apart. Phil and Wally's relationship fell apart when Lil told Wally that he does not like her. When Phil finds out that Lil lied to Wally, he becomes upset at his sister.

When a comic book starring Chuckie's favorite superhero Armadillo Dave gets cancelled, he becomes too depressed to help Tommy with his science fair project. Tommy has to buy a rat for his project, but the last rat available is a mean one. It scares everybody. Kimi made Tommy a simple one lane track for his rat, much to his disappointment as he feels he would get a failing grade for it, but needs Chuckie so he can get a good grade on it since Chuckie has done it before. The gang tries to find Chuckie a new hero to worship.

When Tommy's gang's parents feel that they are spending too much time watching TV, they ban it from the house. So in order to get their televisions back, they do something dare-devilish. They make a tree house with a zip-line in the backyard to scare and anger their parents into giving them their TV back.