After saving Nya, the Ninja are arrested and put on trial! Despite the help of their lawyer Dareth, the Ninja are sentenced to five years in Kryptarium Prison. While they are in prison, a mysterious masked messenger visits Llyod and reveals that the Crystal King is gathering all the enemies of the Ninja and plans to destroy NINJAGO City!
Can the Ninja save NINJAGO City from the Crystal King's evil plan?
Long before time had a name, Ninjago was created by the First Spinjitzu Master by using the Four Elemental Weapons of Spinjitzu; weapons so powerful, no one can handle all of their power at once. When he passed away, his two sons swore to protect them, but the oldest, Lord Garmadon, was consumed by darkness and wanted to possess them all. A battle between brothers broke out and Lord Garmadon was struck down and banished to the Underworld. Peace returned to Ninjago as the younger brother, Sensei Wu, hid the elemental weapons in the far corners of Ninjago.