Olivia has just moved into Heartlake City. It's hard to make new friends when all her best intentions create chaos everywhere. But when your heart is in the right place, true friends are never far away.

When the girls plan a surprise party for Stephanie's birthday, they discover it's not easy keeping a secret.

The girls enter a science contest and win a trip on a luxury yacht - but not everything goes to plan when they set out to sea.

The girls are visiting Mia's grandparents Ranch when Olivia accidentally knocks down the neighbours barn- but they promise to fix it.

Stephanie becomes fixated with beating Tanya in a float-building contest, but Tanya convinces Emma to join her team in revenge.

Olivia's Aunt Sophie is getting married! But then the groom Henry goes missing... In the middle of the jungle! Will the five friends be able to find him before his big day?

Popstar Livi comes to Heartlake City for a talent show. The girls decide to enter, but one especially wants to win.

The girls leave for science camp where they meet reserved Kate - but they soon realise you shouldn't judge a book by its cover.

The Friends are having fun at Andrea's family's new luxury hotel, but when Aunt Susan must leave, the girls decide to try and manage the hotel for her.

It's Stephanie vs. Tanya for Heartlake High class president. But when Tanya resorts to dirty tricks, Stephanie reacts.

The girls are enjoying Heartlake Amusement Park. That is until Emma types a text to Mia, but sends it to Matthew by mistake.

At the Country Club where she teaches, Mia's heroic rescue of a puppy and horse earns the gratitude of their owner, Fiona.

When dognappers steal Mia's dog from the Heartlake City Dog Talent Show, it's up to the girls to track down the culprits.

It's Stephanie vs. Tanya on a TV bake-off! Stephanie bakes a fabulous cake, but sneaky Tanya steals the recipe.

Stephanie's mum leaves her in charge of their house for a few days, but everything that could go wrong does go wrong!

Working summer jobs at the new Heartlake City Pool, Restaurant and Sports Center is fun and games for the Friends – until singing mermaid Andrea gets her very first teenage crush. He’s Tad, the new lifeguard, and just the sight of him reduces the normally fearless Andrea to a babbling wimp. The Friends all try to help her out, with less-than stellar results, each attempt resulting in increasing mayhem for Tad until he’s terrified of Andrea. Then Andrea discovers that she’s been mooning over the wrong boy all along!

To show her Friends on the What’s At Heart school paper that she’s more than just a photographer, Emma investigates a scary old house on Halloween eve -- only to take a tumble and land in the hospital. There, confined to a wheelchair, she observes mysterious goings-on through her window which convince her that the neighbors are jewel thieves. Her friends, though dubious, agree to check it out. But after nearly getting caught by the neighbors, they come up empty and decide it’s all just Emma’s imagination. Meanwhile, up in Maternity, Sophie’s having a baby! The girls run out, leaving Emma alone. And that’s when the bad guys decide to pay Emma a visit...

At the local snow lodge’s Snowboard Meet, ace snowboarder Mia, trying to raise money for a new Heartlake City animal shelter, enters the fiercest race of all – the Boardercross. Then, while practicing, she has an accident and hurts her ankle. She insists it’s no big deal, but once she heals and tries to resume practice, the usually fearless Mia finds she’s now terrified of snowboarding! With the help of her Friends, she tries hard to overcome her fear, but her nightmarish visions of snowboard monsters and jeering snowmen have her shaking in her bed. She backs out of the race, disappointing her Friends and herself. Finally, when an avalanche traps Fiona, Mia is forced to overcome her fears and race to the rescue.

Today is the most important day of Olivia's life. Not because tonight is New Year's Eve, but it's also the day of the annual Robotics Challenge, when teen scientists compete to build the best robot and win a full university scholarship. Olivia has spent the whole year preparing her entry: an all-new, high-tech, flying Aviator Zobo. It's a sure winner – until Emma accidentally sabotages it and wins the trophy herself! Furious, Olivia breaks off her friendship with Emma and the other Friends (for defending Emma), and stomps out in tears. That night, in a dream, a living, breathing Aviator Zobo takes her on a tour of her life – past, present and potential future – to remind her that friendship is the most valuable prize of all.