It's a sad day as Clarissa complete her last assignment for the Dispatch - an article dedicated to the future.. where will everyone be in 20 years?

Clarissa has her work cut out for her, when Piper, the daughter of one of her mom's old school friends comes to stay and is far from friendly.

Clarissa is given her own advice column in the school paper. She soon finds out that giving people good advice isn't as easy as she thought.

Clarissa discovers that real science can be really weird. After interviewing a woman who supposedly spotted a UFO, Clarissa decides to get to the bottom of the UFO phenomena herself.

Clarissa is faced with the terror of a visit from her Canadian Aunt Mafalda, who's capable of hugging the life's blood out of helpless young relatives. Clarissa enlists Ferguson's help in trying to scare Aunt Mafalda out of the house.

Using her deductive powers, Clarissa determines that her parents are having a baby. She orchestrates a series of demonstrations to try to dissuade them, only to discover they're actually adding a new room on to the house.

In an effort to break free from the shackles of "kiddie" jobs like babysitting, Clarissa asks for permission to apply for a job at the Baxter Beach Carnival. Her parents say no, but Clarissa perseveres only to wind up running the day care center.

Clarissa and Sam sign up for the school intern program to help them get aquainted with the real world. Clarissa ends up as Mr. Ander's intern and Sam is Mr. Darling's intern. However, trouble ensues when they both get annoyed with each other's fathers.

When younger brother Ferguson displays her training bra in show and tell, Clarissa hatches a plan to send Ferg-face into outer space via helium balloons and a straight jacket.

Clarissa is mortified by the prospect of her dad speaking at her school's career night. To no avail, he tries to get hip quick. His speech winds up making her proud even if he does hug his T-square during it.

Clarissa learns a few lessons about responsibility when she becomes the editor in chief for her school newspaper.

When Clarissa decides to protest against animal testing at Woolcott Industries, she and Sam end up getting arrested! But afterward they can't decide whose parents they should call from the police station.

In an attempt to get around her mother's mandate that there be no TV in the Darling home for a whole week, Clarissa connects her computer terminal to the cable converter and nearly blows up the house.

Although she's too young for a driver's license, Clarissa is consumed by the desire to aquire a 1976 Gremlin she finds in the want-ads.

An I.Q. test result has Ferguson believing that he is really a genius. His dreams of creating a model society come crashing down when he goes head-to-head with Clarissa on a game show called "Brain Drain".

Clarissa has a history assignment: take something old, tired, and worn out, and reinvent it. So Clarissa tries to reinvent her mom.

After Clarissa is given a class assignment to invent and market an environmentally safe product, she teams up with her mom to market Bouncy Balls- yummy health treats that bounce when they're dropped on the floor. The business doesn't work out so well when Clarissa feels left out of marketing process. Meanwhile, both Ferguson and Marshall have their tonsils removed.

When a greedy bully forces Ferguson to hand over his big sister's walkman, Clarissa decides to stand up and fight. It's not her fists but her spirit that KO's the bully, and he winds up falling for Clarissa.

Clarissa pitches in to help celebrate her parents' anniversary. Unfortunately a couple of things get in the way of the party-- her parents stop talking to each other, and Clarissa's cake nearly explodes.

When Clarissa is asked to play the part of a column in a pageant celebrating ancient Greece, she hatches a plan to get sick. The pageant turns out to be really cool, but it's too late-- Clarissa's plan has taken effect and she's grounded.

Clarissa and Sam go to a party dressed as cool, hip, outrageous characters. Clarissa dons a wig, a tatoo, and a nose ring and decides to call herself Jade. At the party, she falls for a cute guy named Paulie. But Clarissa isn't sure if he's interested in her or the ficticious Jade. Meanwhile, Ferguson finds a stray cat who he names William F. Buckley and tries to hinder his parents from looking for the real owner.

Marshall joins an architectual firm after receiving some very generous offers from the corporation. But the money doesn't seem to make up for how the entire family feels about the firm. Meanwhile, Clarissa tries to write an essay to win a scholarship for college.

Ferguson orders a pair of new mind control glasses and decides to try them out on the family. However, Clarissa decides to fight back too as she has the same mind control glasses.

Clarissa decides that news is cool, and that she'd rather be Jane Pauley than anyone else in the world. Her first story is her mother's midlife crisis, which is triggered by a college pal showing up in town as a successful modern dancer.

Clarissa is determined not to wear the same old blue cardigan and knee socks for her school picture and devises a scheme to outfit herself in the coolest clothes around.