It’s the Day of the Departed, one of the ninja’s favorite holidays of the year. But when a sinister plot threatens all of the NINJAGO world, Cole and the ninja team find themselves battling an army of their arch-enemies and the mysterious Master Yang. It’s all trick and no treat for NINJAGO’s greatest heroes, for if they lose this fight …they may wind up “departed” themselves! Action, adventure and mystery build to a heart-pounding climax that will change the lives of the ninja forever!