It's a Dangerous Game

After years of war, enemies, and pain, Ninjago has finally found peace as have our heros.... for about 16 months. Ninjago had just recoveredfrom it's previous oppressers when Lloyd discoveres jarring news....
While meditating with Wu, he recieved a vision about a girl he'd never met before--and she's in trouble. Not only that she's his cousin; Misako's sister's daughter. While the two discuss matters, the ninja leave on one of their many nightly patrols of Ninjago City, where they discover the impossible; another fire user.
They return to the monastery beaten, and with a new mysterious enemy.
A man, his identity unknown, is behind this all, pulling the strings and playing games. But the closer Lloyd gets to finding him, more secrets come out, and more people get hurt. Its a Dangerous Game