Lego Ninjago: Masters Of Spinjitzu: Season 0, Episode 8

0 - 8: The Golden Weapons

Long ago, the Four Golden Weapons of Spinjitzu were created by a great warrior, the First Spinjitzu Master. It was he who created Ninjago. When he passed away, his sons were tasked with protecting them. But the older brother was consumed by evil and he became Lord Garmondon, determined to use the weapons to reshape Ninjago in his own image.