Best friends Olivia, Andrea, Emma, Mia and Stephanie reside in HeartLake City but didn't know each other - that is until the World Petacular brought them together. On the eve of the biggest event HeartLake City hosts, disaster and chaos is abound. New-in-town Olivia is helping her veterinarian Aunt Sophie with her mobile clinic. But when she's put in charge of training a scruffy puppy named Scarlet, the puppy runs amuck, leaving a trail of destruction as she collides with Andrea, ruins Emma's banner and Stephanie's cakes, and finally spooks Mia's horse Bella who bucks Mia off and sprints away. The girls quickly unite, helping each other to save the day and most importantly have fun along the way!

When Emma, Olivia, Andrea and Mia plan a surprise party for Stephanie’s birthday, they discover that it’s not easy keeping their plans a secret. As the girls choreograph a dance routine, magic show and search for the perfect present and cake, Stephanie becomes aware that her friends are avoiding her on her birthday and excluding her from their activities... Little does she know that her friends are secretly preparing a surprise pool party for her! Once the surprise is revealed Stephanie realises how much her friends care about her and the importance of friendship.

When Olivia, Stephanie, Andrea, Mia and Emma enter a school science contest and win a Dolphin sight-seeing trip, not everything goes to plan... As the girls set out to sea on a luxury yacht, misunderstandings and disagreements occur which become secondary when they discover a pod of dolphins in danger. The girls learn that they have to compromise and trust in each other if they are to save the dolphins and their trip out to sea.

Mia invites her friends to her grandparents' ranch for the weekend. But when Olivia accidentally knocks down a neighbor's barn with a tractor, the girls promise to raise the money to rebuild it themselves. Complicating matters, Mia and Stephanie turn out to like the same boy, Martin. They'll have to learn to set aside their differences and work together if they're going to raise enough money to make good on their promise.

When the girls enter a float-building contest, Emma is especially excited to share her design idea for the float. But no one is lis tening to her, especially Stephanie, who's become obsessed with beating her rival Tanya in the contest. Emma finally does find some one who appreciates her design… Tanya! Tanya convinces Emma to join her team to build the float design. But is Tanya just using Em ma to get revenge on Stephanie?

The girls are super excited to be planning a wedding for Olivia's Aunt Sophie. There's just one little problem: Olivia learns that the groom has gone missing in the jungle while working at an animal rescue station! Not wanting to worry her aunt, Olivia, Stephanie and Mia secretly fly to the jungle to try and find the groom, Henry, rescuing a few animals along the way. Too bad Emma and Andrea couldn't keep the secret back in Heartlake City. Now, Sophie, Emma and Andrea join the others in the jungle to try and find Henry before the rapidly approaching wedding date!