You once worked for someone who.. wasn't exactly good. Being a villians sidekick wasn't a very stable career, especially in ninjago...

with the defeat of your boss, you were to get away before getting charged for your crimes, falling into.. a much less threatening state, to say the least.

Cole patrolled the city of ninjago when he spotted someone.. familiar... the mental whiplash hit him when he realized that the person they once fought was now.. some civilian holding groceries...