Ninjago: Peace Island

Kai and Nya had found out that they are a Prince and a Princess from an island called Peace The island had been attacked by the Overlord and the Serpentine when they were only babies, then they found out that they have five more siblings while Kai has a twin brother name Klaus
The Ninja and Kai's family have to keep the Ying and Yang safe or else one of them will die. Well they keep the Ying and Yang safe or will it be too late?