A talent scout feels that Susie has what it takes to be a singer. Her parents, however, object to her concert because they are worried that it will affect her grades. She then decides to fund the venture herself, by asking her older sister for the money.

Tommy, Chuckie, Kimi, Phil and Lil are trying to raise money to see their favorite band live in concert, ""The Sulky Boys"" But are not even close to having enough money to buy tickets. Until they talk Dil into selling his latest invention the ""belt-quarium, which he made for his new fish Pablo. The belts prove to be a huge success, despite Angelica completly ripping off the idea. But when the fad quiets down, Tommy asks and without realizing it, forces Dil to come up with a newer invention. But when each hot item suddenly becomes lame by each day, Dil is pressured to please his brother and friends with new and more origianl creations.

The kids try to get a date to the Valentines Day school dance with their crushes.

Dil is convinced that aliens are coming. Meanwhile, Angelica tries to be a nicer person to get Sean's attention.

Now that she's a teenager, Angelica asks her mother to get rid of all her old baby toys, but she forgets to tell her that her beloved Cynthia doll is an exception. She then races to save her doll from the hands of a greedy toy collector.

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?