A new arrival in town turns both Marinette's and Adrien's lives into disarray. Friendships will be put to the test as worlds collide. Will Cat Noir's love for Ladybug be enough to overcome his love for a friend? Will Marinette's heart finally be torn in half or finally glow brighter than ever when all the secrets are revealed. Everything Paris' superheroes fought for will be shattered as they fight against their greatest enemy yet.