Lloyd was able to uncover the secret of who was behind the Kabuki mask. But it's not just this that surprises him and the ninja: the true identity of the Diamond King also awakens memories of past adventures. Meanwhile, the Diamond King's council prepares a ritual to transform the weapons of Spinjitzu into weapons of evil. Furthermore, a trail leads to a mysterious ally... Who is behind it and will the ninja be able to defeat the Diamond King's army?