(1) Frostbite

Few know that more than one miracle box exists. One is safeguarded by the Paris superhero Ladybug, while the other is a cherished family heirloom of the Martin family. As Shadow Moth's influence spreads terror across Paris, the Martins make a bold decision: they will leave New York behind to join the fight.

Skylar, the holder of the Firefly miraculous, and her twin brother Camden, who wields the Lion miraculous, team up with Ladybug and Chat Noir in a high-stakes battle against evil. Amidst the chaos of combat and the struggle to protect their new home, will Skylar and Camden discover something unexpected in the city of love?

(this story takes place around the end of Season 4)