Rainbow Rocks with a Ninjafied twist! During the events of Rainbow Rocks, a strange mirror turns up in Ninjago. Curious as to what it does, the ninja devise a plan to check it out once Master Wu leaves. Unfortunately, the Mirror turns on and becomes a portal, forcing all of the ninja to go into it! They find themselves in the Human realm, where a dark plan is underway and their powers are...gone? Or at least can't use them without playing music. Trapped in a world with 7 girls, evil sirens, and no way to get back home, the Ninja are gonna have to sing their way to victory, and maybe learn this cursed realm, is a blessing in disguise?