Barbie and her sisters, Skipper, Stacie and Chelsea, and their lovely new pet mates discover sudden thriller and journey after they return to their hometown of Willows. Whereas going via mementos in Grandma's attic, the sisters uncover an outdated map, believed to result in a long-lost treasure buried someplace within the city. With their pet buddies in tow, the 4 women go on an thrilling treasure hunt, alongside the way in which discovering that the best treasure of all is the love and laughter they share as sisters!