After Clarissa gets her first training bra, she tries to exact revenge on her brother for showing her bra at school, using a plan involving putting him into a straitjacket and having her friend Sam attach large helium balloons to him to carry him into the sky. Meanwhile, Sam wants to get out of the school football team. Her plan fails when Sam is lifted in the sky while holding the balloons, and crashes into a nearby tree. They burst and he falls to the ground, injuring his arm - meaning that he cannot play football.
Clarissa hates having to wear uncool clothes on picture day and starts campaigning to wear what she wants. Meanwhile, Janet and Marshall argue over Janet's high school boyfriend.
Clarissa tries to buy a car with money from Christmas cards. However, she hasn't earned enough to pay for the cards and she finds it difficult to sell them in July.
Clarissa wants to become a TV journalist. Meanwhile, Janet faces a dance friend who steals one of her best moves, and Ferguson cons Marshall into buying a music cassette that he thinks will teach him Swahili.
When Aunt Mafalda visits from Canada, Clarissa tries to scare her away by saying the house is haunted. It does not work, and Clarissa sets up a seance to contact Mafalda's dead husband.
Clarissa tries to help celebrate her parents' wedding anniversary by making a cake, but Janet and Marshall stop talking to each other over what to do on the night.
Clarissa fakes sickness in trying to get out of her part in the school pageant. But, when the play turns out to be a success, Clarissa truly becomes ill.
This page uses content from the English Wikipedia. The article or pieces of the original article was at List of Clarissa Explains It All episodes. The list of authors can be seen in the page history. As with Nickipedia, the text of Wikipedia is available under the GNU Free Documentation License.