Not only is Marinette Ladybug, the superheroine that protects Paris from the attack of villains, but she’s also now the guardian of the Miraculous. This means that not only does she need to keep her identity hidden, but also the existence of these turbulent, magical creatures, the Kwamis! Marinette has a lot of pressure, not to mention her school and love life! Now she has less time and opportunities to tell Adrien her feelings... Marinette now has to redouble efforts to protect her secrets and Ladybug will have to become stronger to face an indomitable adversary: Shadow Moth, who can now fuse the Butterfly and Peacock Miraculous! Thankfully, Ladybug can count on Cat Noir and their new superhero allies!
本片讲述了心地善良的皇女艾丽婕为了救伙伴从天界跌落到了海底世界阿拉德大陆，由此经历了一系列令她快速成长的冒险事件，并收获了亲情与友谊。最终她克服重重困难，战胜了怯懦，勇敢背负起最高祭司的责任，成长为人人爱戴的天界女皇。
