LEGO Ninjago: Masters of Spinjitzu

Vex, bitter and seeking revenge from his enemies, meets Zane, who has arrived in the Never-Realm and has lost all of his memories. He tricks Zane into believing he is the Ice Emperor, ruler of the realm with Vex being his trusty advisor. Prompted by Vex, Zane uses the Scroll of Forbidden Spinjitzu to brutally punish Vex's enemies and takes over the Never-Realm, placing it under an eternal winter.