Olivia transforms her house into a make believe hotel when her friends are attending a sleepover, and looks for a ghost who is scaring the guests, who turns out to be her very annoying brother, Ian.
Olivia helps Julian overcome his stage fright during a school musical about fruits and vegetables.
Olivia pretends that she is a doctor who runs an itchy-foot clinic to help Julian before a big soccer game.
Olivia is miserable when her family's flight to Grandma's is canceled, so she finds ways to pass the time while on a long drive there.
Olivia is inspired to become a painter after a trip to the museum, and makes a really big mess in her room.
Olivia and Julian camp out in the backyard to photograph wild animals, but her annoying brother scares one away.
Olivia puts herself and Julian on a training regimen as they prepare for their school's track-and-field day.
Olivia pretends that her cat and her dog are her babies and develops some useful maternal skills, which leads to some trouble.
Olivia wants to sell more cookies than anyone else in her Young Pioneers girl scout troop.
Olivia wants to be the queen of the fairies but it was Francine instead, also she annoys her teacher with her constant mooing.
The two decide to switch places however Stephanie's parents must fly back to their home country and they shall take Olivia/Stephanie with them.
Olivia's family participates in a town-wide treasure hunt, which involves searching for clues and doing goofy tricks.
Olivia and her classmates look for a lost key to the school bus and find a hidden treasure.
Olivia has to find a new birthday gift for Francine when the charm bracelet she'd planned to give her falls down the drain.
Luckily she has a plan to show Mrs. Hogenmuller that she doesn't need an award to be teacher of the year in the eyes of her students.
The annual town dance competition is coming up, and Olivia is determined to put an end to the reigning champs (The Prancer Dancers) winning streak.
After Olivia and Dad spend an afternoon reading superhero comics, a toy of William's suddenly goes missing.
To get William's toy back, Olivia recruits her friends to form her own crime-solving, superhero team.