As events unfold in her life, Clarissa explains to the viewer the motivations behind people's actions.
Cast:Melissa Joan Hart , Jason Zimbler , Elizabeth Hess , Joe O'Connor , Sean O'Neal , David Eck , Sara Burkhardt , Nicolle Rochelle , Shannon Woodward , Heather MacRae , Bob Noble , Susan Greenhill , Danny Gura , Kristian Truelsen , Shane Obedzinski , Marisa Lauren , David Singletary , Phoenix Stone
Since Clarissa's parents have forbidden her from buying a 'car', she comes up with a scheme to buy Olivia's brother's motorcycle.
To complete a homework assignment, Clarissa attempts to reinvent her mother.
After becoming editor-in-chief of the school newspaper, Clarissa learns that power is accompanied by responsibility.
Piper, daughter of Janet's college roommate, visits for a week. Clarissa works to overcome Piper's aloofness.
During a party, Clarissa falls for a drummer named Paulie while pretending to be a 'hypercool' dressed character called Jade. Clarissa initially assumes the Jade alter-ego when meeting Paulie but eventually reveals her true self.
Problems arise after Clarissa and Sam are respectively assigned internships under the other's father.
Clarissa composes an essay for a scholarship. Marshall considers a lucrative job offer from a large corporate firm.
Janet and Clarissa invent a delicious snack that bounces. Mother and daughter then collaborate to market their creation as a novelty health snack called Bouncey Balls.
Ferguson reads a book on mind control then uses the included glasses to hypnotize friends and family. Clarissa counters Fergs attempts to control her mind by fighting fire with fire.
Clarissa pens a school paper advice column under the pseudonym, Alice B. Talking. Ferguson prepares for performing a stand-up comedy routine for talent night.
Clarissa is assigned to write an article about a local woman's sighting of an UFO. After interviewing the elderly lady, Clarissa decides to investigate further.
Clarissa and Sam get arrested for protesting against a local company's animal testing.
Clarissa finishes her last article for the newspaper, dedicated to the future. This arises the question: Where will they be in 20 years?