When Cole returns to Yang's haunted temple to seek revenge on the former Airjitzu master who turned him into a ghost, he accidentally uses a powerful dark magic blade that traps him in the temple and unleashes the spectral forms of Ninjago's greatest villains. While Cole battles for his freedom, the ninja must return their ghostly foes to the Departed Realm before they gain the power to remain in Ninjago forever. Also includes six bonus episodes from the LEGO Ninjago television series.