Barbie and her friends are hard-working gymnasts who are recruited as top-secret spies! Powerful gems have been stolen, and it is up to Barbie and friends to use their dazzling disguises, high-tech glitter gadgets and trusty teamwork to stop a notorious jewel thief. Will they be able to catch the thief? Join Barbie and her squad in their exciting adventure featured in this amazing carry along story book.