George decides to take the family on a vacation to Costa Rica where he’ll be filming a whale documentary, while Barbie & friends land a summer jobs at a water park in Malibu.
After her boss quits, Barbie gets promoted with new responsibilities. Meanwhile, Skipper & Stacie join Chelsea on a quest to find a missing mermaid but end up getting lost.
Barbie’s friends struggle to adjust to her becoming their boss at Oceans Extreme. In Costa Rica, Stacie, Skipper and Chelsea close in on the missing mermaid.
Barbie & friends create a plan to stop smugglers to save a baby whale. As a reward, Barbie gets a ticket to Costa Rica, where she joins her family to see the whales arrive!
On her first day back at school, Barbie learns that Golden Beach High's newest student is none other than Tammy, her opponent from the baking competition show.
When Margaret hesitates to take a promotion at her job, Barbie and her sisters work together to prove to their mom that they can handle extra responsibilities.
Skipper takes her sister’s jacket without permission and ends up misplacing it. The two sisters race around town trying to get the jacket back, but are always one step behind.
Barbie tries to help Skipper adjust to high school by inviting her to join their lunch table. When Skipper bonds with her friends, Barbie unexpectedly feels left out.
The Roberts family are driven to enter Malibu's annual Family of the Year contest, competing against the family that has won every year for the past decade: The Reardons.
Barbie & Skipper decide to work together on their school community service project at the Water Park, but the two clash when Skipper doesn't put in an equal amount of effort.
The Roberts host their neighbors at the Dreamhouse when an earthquake causes a power-outage. Meanwhile, Barbie & Skipper decide to raise funds for the destroyed library.
During spirit week, the girl’s high school competes against their rivals to see which school has the most spirit, and which school will bring home the victory bell.
When her parents are called out of town with work emergencies, Barbie volunteers to run Halloween with the help of her friends, turning the Dreamhouse into a haunted house.
On a camping trip, the family is trying to resist the tempting brownies Barbie made. But everyone is a suspect when Barbie discovers the brownies were eaten on the 1st night!
Barbie and her sisters accidentally crash the camper when they take it on a trip. The sisters decide to enter in a reality show to win prize money so that they can fix the camper.
Barbie feels horrible when outside commitments keep her from taking Chelsea to her first circus, so Barbie decides to make it up to her by putting on a circus at the Dreamhouse!
The Dudes & Trey get into a fight that results in the Dudes befriending Barbie instead. Without the Dudes, Trey finds a friend in Ken when they bond over a video game.