芭比和她的姐妹们在一个阳光普照的岛屿度假胜地度过假期时，一只珍稀的宝石海豚不见了。 她和她神秘的新朋友Isla会找到它吗？ 最重要的是，Isla会与Barbie分享她的隐藏的秘密吗？
Chickenhare discovers he is not the only hybrid of his kind and sets off in quest of his fellows' hidden island. An action-packed treasure hunt in breathtaking settings, with returning characters and great additions to the team.
故事延续第二季主线，灵界与斗魂卫在利益纠葛之下冲突不断，本季灵界派出强盛军队欲对斗魂卫赶尽杀绝，两方势力都在以正在举办门宗大会的五法山为中心汇集，在这里发生着惨烈的战斗与冲突。
