Lizzie meets Ronnie, a paper boy. She falls for him, and gets a series of firsts. First love, kiss, and heartbreak.

Lizzie, Miranda and Gordo are obsessed with a Spanish game show, "El Oro de Montezuma." Miranda's cousin, Carlos, is scheduled to compete on the show and Lizzie and her friends decide to be on his team.

Lizzie and her mom become best friends after reading a book in social studies.

When Kate dislocates her shoulder during cheerleading practice, Claire usurps Kate's position as captain.

Miffed with her parents for not raising her allowance, Lizzie gets her first job as a busboy at the Digital Bean.

Lizzie, Miranda and Gordo have a fight and stop talking to each other. Meanwhile, Kate and Gordo, Miranda and Larry, and Lizzie and Ethan, are paired up for a treasure hunt-styled school project.

Lizzie must watch Matt and Lanny and she tries to be responsible and stops the boys from playing with her dad's prize possession, a football autographed by the legendary Walter Payton. But Matt and Lanny managed to deflate the football anyway. Lizzie and Matt know they're in BIG trouble if they can't get the ball fixed.

Lizzie learns what sort of things Ethan Craft is into in order to transform herself into his ideal date.

Lizzie and Matt switch bodies for a day, a la Freaky Friday. Matt (in Lizzie's body) and Lizzie (in Matt's body) go to each other's school and end up in amusing situations.

Miranda accidentally bumps into a lipstick display, upsetting the contents, she hurriedly puts things right, then tells Lizzie and Gordo she wants to leave, but the security guard stops her and wants to check her purse. Inside he finds a brand of lipstick from the display. Miranda protests that she bought it at the store last week and asks Lizzie to back her up, but Lizzie doesn't help her out.

Lizzie starts feeling inferior when she realizes a lot of the other kids around her have special talents and skills that they've developed, including Gordo with his film making and Miranda with her violin.

Lizzie wants to be voted "best dressed" in her school and wants to buy an expensive pair of jeans, but her Mom refuses and insists on buying her clothes at discount store.

While Lizzie and Kate are stuck working together for the Spring Fling committee, Lizzie sees Kate knock over the bust of the school's founding principal. When Principal Tweedy discovers this, he cancels the Spring Fling unless the person responsible comes forward.

Lizzie begins mentoring a seventh-grader girl named Andie, who begins to mimic her characteristics and behave like Lizzie.

Frankie Muniz visits, which puts a strain on Lizzie's friendship with Miranda and Gordo.

Lizzie and Gordo worry about Miranda's diet; Matt expresses interest in the fine arts.

Gordo skips a grade and gets promoted to high school. After initial euphoria, Lizzie and Miranda start to miss Gordo.

Kate's having a big birthday party and she invites everyone from her class, including Lizzie, Miranda and Gordo. But Lizzie and Miranda's parents refuse to let them go to the party as there would be no adults around. So, Lizzie, Miranda and Gordo lie to their parents and go to the party anyway.

A major food fight is raging in the cafeteria. Principal Tweedy walks in and sees Lizzie, Kate Sanders and Larry Tudgeman right in the middle of things and calls them to his office. For punishment, the three will have to clean up the huge mess and do some community service.

Lizzie fervently hopes to win the grand prize in the Christmas parade with her idea for a "Rock & Roll Christmas" float. The rest of the McGuire family are there, and they are charmed by an eccentric old man in an elf suit who calls himself Nobby Frostybump and seems to really believe he's one of Santa's elves!

Lizzie tries to get all eleven of her pictures in the school yearbook, but Kate has other plans.

Lizzie starts a column on her school's website, but soon finds it difficult to handle when her good intentions backfire.

Lizzie's friends and family play a murder mystery party game at her house.

As Lizzie and her friends get ready for graduation, Gordo tries to figure out the perfect thing to write in her yearbook.

A water pipe bursts in a wall in Matt's room and to Lizzie's horror, she'll have to share her room with her brother for a week until the repairs are done.