Barbie and her friends take a road trip to hear Daisy drop the beat at a major music festival. But Daisy seems to keep finding reasons to stall along the way.
With their parents away for the night, Barbie, Skipper, and Stacie recruit Ken for an elaborate plan to bring Chelsea's imaginary "Roof Fairy" to life.
Barbie and her friends get swept up in the pursuit of internet popularity after a goofy vlog post unintentionally goes viral and they find being famous isn't as great as it seems.
When dogs get banned from the beach, Barbie and Nikki decide to fight City Hall; victory looks certain until Poppy Reardon joins the race and fights anything but fair.
When Stacie and Skipper get into a fight, Barbie offers to switch rooms with them; eventually, all of the Roberts sisters learn no roommate is perfect.
Barbie and her friends try to wow Nikki's fashion idol at a mermaid convention, but things take a fishy turn when Barbie's sisters become suspects in a mystery.
With her sisters suspected in a string of thefts due to a misunderstanding, Barbie works to clear their names and find the real thief, as well as help Nikki impress her idol.