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.

After Sam's mom Debbie arrives in town, she announces that she's going to take Sam back to Seattle with her. Clarissa and Sam remember all the great times they've had before they have to say goodbye.

Clarissa and Ferguson are left home for the night and try to scare each other with a huge war of spooky pranks. However, they both end up being scared out of their wits when someone tries to come inside the house.

After Clarissa accidentally walks out of a clothing shop while wearing a piece of lingerie that she didn't pay for, she has nightmares about being a hunted criminal. When Clarissa doesn't want to tell Sam what's bothering her, it causes tension in their friendship.

Clarissa is chosen to represent her school at a poetry banquet after her computer helps her write a strange but well-loved poem.

After having an argument with Clarissa, Ferguson tries to get her back by giving her the Silent Treatment. Clarissa has to figure out how to get him to talk and break his silence. Meanwhile, Janet gets paranoid over being a juror at mobster Fishface Eddie's trial.

Janet's old high school boyfriend Joey Russo, a famous writer, comes back to town and Janet invites him over to have dinner with the family. However, things don't go well when tension builds between Marshall and Joey and Joey proves to not be too helpful when he offers Clarissa advice on a paper she's writing.

Clarissa learns a thing or two about money and responsibility when she lands several part-time jobs and tries to keep up with all of them.

Clarissa tries to ruin Ferguson's new romance with Fiona by giving him lots of bad advice. But her plan backfires when numerous girls from school start to go crazy for him.

As Marshall's birthday arrives, he loses interest in everything and decides to sell the house and move the entire family to Mango Island. Everyone goes along with the idea until Marshall has a couple interested in buying come look at the house and they realize just how serious he is.

The Darling's are in for a surprise when Marshall's parents come to visit and have completely changed. Clarissa also must figure out how to be the DJ at her grandparent's anniversary party and go to a Pearl Jam concert with Sam in the same night.

After Janet asks the family to participate in Volunteer Day at the Chidren's museum, Clarissa tries to figure out a way to escape her duty of helping out.

Marshall bets his neighbour that a Darling can make the varsity football team. But Ferguson realizes that the only way he's going to make it is by marketing himself as the Smallest Student Football Player. Clarissa runs Ferguson ragged during special 'training' for football try-outs.

After Sam sets up himself and Clarissa up on a double blind date, Clarissa starts to contemplate all the ways that the date could go bad and what her blind date Milton might be like. Meanwhile, Ferguson takes an interest in law and starts filing suits for his parents without their knowledge.

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.

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 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.

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.

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.

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.

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 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 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.