Isla reveals to everyone that she is a mermaid, and she gets in the pool with the Gemstone Dolphins. Her intentions are to make money by exhibiting the dolphin for its unique traits. This amazing find encourages them to learn more about preserving the coral and all the sea life that lives there. The Gemstone Dolphins find Emerald and Ken opens the gate for them. Barbie then meets a mysterious friend named Isla, who turns out to be a magical mermaid! Barbie then meets a new, mysterious friend named Isla who turns out to be a magical mermaid, and they work together to free the dolphin so he can be reunited with his family. While diving and exploring the reef, the sisters discover rare, rainbow-colored dolphins who only visit once a year.
Barbie apologizes to Isla, and Isla agrees to help. Barbie and Isla part ways, and Barbie gets caught in Isla's place. The next morning, Isla and Barbie go swimming and one of the Gemstone Dolphins touches Isla's necklace, transforming her back into a mermaid. Barbie and Skipper agree that the group selfie is the best photo from their trip, and Barbie reunites with Isla after using the shell that Isla gave her. Barbie, her sisters, Ken and Isla go to a buffet, and Skipper takes a group photo. They stay there while they visit Ken during his marine biology internship as a research assistant to.
Barbie's sisters arrive and Skipper says Hugo's logo is for a sideshow company. Isla gives Barbie a shell that emits a signal, and tells Barbie to go to the other end of the tunnels and guide them through. Isla and the dolphins hide in the tunnels, so Barbie says they escaped. Stacie, Chelsea and the puppies also arrive, after Stacie saw Emerald from their cabin. Isla no longer trusts Barbie, and says she will free the dolphins by herself.
She tells Barbie not to tell Marlo about Gemstone Dolphins, and agrees to wait until a vet checks Emerald the following afternoon. Isla transforms her tail into legs and tries to release Emerald, but Barbie stops her. It aired on on September 17, 2017. Hugo leaves in the helicopter, and Isla leaves with the dolphins. She tells Emerald that he is going to make her a lot of money. Ken tells Barbie and Skipper about the myth of the Gemstone Dolphins, and says that Emerald is in a pool for sick or injured animals to be rehabilitated. About Barbie: For over 59 years, Barbie has led girls on a path to self-discovery and helped them to imagine the possibilities.
Marlo leaves, and Isla and Barbie find the dolphins. While diving and exploring the reef, the sisters discover rare, rainbow-colored dolphins who only visit once a year. Marlo and Hugo go to his helicopter to find Isla and the dolphins. Magic Join the adventure as Barbie and her sisters Skipper, Stacie and Chelsea journey to a tropical island! Marlo arrives and says she reprogrammed the master device, so the new pass code fails. After over 180 inspirational careers, Barbie—along with her friends and family—continues to inspire and encourage the next generation of girls that they can be anything. After trying the code again, a new code is sent to Marlo's master device.
That's when they meet Isla, a mysterious new friend who's also on a mission to save the coral. . Ken asks Marlo if Emerald is a Gemstone Dolphin, but Marlo says that they are just a myth. The gemstone markings on it and the other dolphins disappear. Barbie's sisters overhear Marlo telling Hugo to transport Emerald to the mainland facility as soon as possible. Soon after, the girls discover that the dolphin is being held by Marlo, the biologist Ken is interning with.
Barbie tells Ken and the puppies to distract Marlo while Chelsea gives the master device to Stacie and Skipper. This amazing find encourages them to learn more about preserving the coral and all the sea life that lives there. Skipper realizes her photo of Isla is a photo of a mermaid, and she takes a photo of the logo on Hugo's helicopter. That's when they meet Isla, a mysterious new friend who's also on a mission to save the coral. Skipper syncs the device to her tablet and downloads the new pass code.
Barbie tells Marlo that a real marine biologist would use a research center to help animals, not exploit them. Isla says that Emerald is a Gemstone Dolphin. They must work together to free the dolphin so he can be reunited with his Gemstone Dolphin family before Marlo sends him away. Heartbroken about its capture, Isla vows to go find him and told the other dolphins to stay. Marlo and Hugo see them escaping, and pursue them.
Barbie, Skipper, and Ken go diving, and Skipper takes an unclear photo of Isla. They meet new friends, face new challenges above and below sea level and follow their dreams because they know that you can be anything with Barbie®! While snorkeling, they discover a young dolphin trapped in an enclosure, who turns out to be a rare and beautiful Gemstone Dolphin! Emerald looks fine, so Barbie thinks he got into the facility by mistake. Isla tells Barbie to keep it a secret. Skipper deletes her photo of Isla as a mermaid. Marlo calls the vet, Hugo, and asks him to come tomorrow morning instead of the afternoon. But there's no time to celebrate having a mermaid for a friend, because Isla needs the help of Barbie and her sisters, and the gemstone dolphins to save the day.