Through a misunderstanding, Junie B. thinks that her new baby brother is really a baby monkey, and her report of this news creates excitement and trouble in her kindergarten class.

Six-year-old Junie B.'s penchant for spying on people and her curiosity about the private life of her teacher get her in trouble at kindergarten.

Junie B is very upset when a boy in her class plans to invite everyone except her to his birthday party, but her grandfather helps her deal with the situation.

After hearing from a classmate at kindergarten that people have monsters under their beds, Junie B. Jones is afraid to go to sleep that night.

Lucille invites Junie B. and her friend Grace to sleep over at her very rich nanna's house, where everything is beautiful, expensive, and breakable.

Frustrated because the rules for her class's Pet Day will not let her take her dog to school, Junie B. Jones considers taking a raccoon, a worm, a dead fish, and other unusual replacements.

When Junie B. Jones receives a mushy gushy "valentime" on Valentine's Day, she tries to find out who in her kindergarten class is her secret admirer.

As captain of Room Nine's field day team, Junie B. Jones tries to rally her troops after they lose several events.

Junie B. thinks first grade is a flop when her kindergarten friend Lucille prefers the company of twins Camille and Chenille and Junie B. needs glasses.

Junie B. Jones learns some interesting things about the Tooth Fairy when she becomes the first student in Room One to lose an upper tooth.

When Junie B. cannot play in the school kickball tournament because of a sore toe, she brings her unique talents to the halftime show. Go Room One! It's time for the first-grade kickball tournament! Only, here's the problem. Junie B. has hurt her big piggy toe and she can't play on the team. So, now what? She definitely doesn't want to be a cheerleader. But wait! Maybe she could be in Sheldon's halftime show! Then all eyes would be on her! And she...

With Halloween approaching, Junie B. needs to find a costume that will scare off the real witches and ghosts that she believes will be out on the holiday.

Excitable Junie B. Jones manages to find trouble both before and during a trip to Hawaii and records each incident in a photo journal given to her by her teacher.

To celebrate the Thanksgiving holiday, Mr. Scary's first grade class prepares a Thankful List for the school contest, but Junie B. Jones finds it hard to be grateful for squash or Tattletale May.