Legend of the Shattered Weapons

Long before time had a name, there were four weapons. But they were extremely dangerous. So, the First Spinjitzu Master shattered the four weapons and scattered the fragments across Ninjago. He decided that the kunoichi wouldn't be important, as long as Darth Vader wasn't released. Little did he know he had begun to lose his marbles in this stage in his life, and they were vital.