Ninjago: Season 5

A grieving Lloyd is possessed by the ghost of Morro, the Master of Wind and Wu’s first student. In Lloyd’s body, Morro renders the other ninja powerless before stealing Wu’s staff. It contains three hidden symbols that are the keys to finding the Tomb of First Spinjitzu Master. Wu knows that if Morro finds the tomb, he will claim the Realm Crystal. This relic has the power to open the fabric between realms, enabling the powerful Preeminent to enter Ninjago.