很久很久以前，有一处白马藏族人民才熟悉的美丽森林。这里竹影婆娑，风光秀美，最值得称道的是此地生活着世界上独一无二的物种——大熊猫。顽皮的熊猫宝宝平平对大森林和外面的世界充满好奇，它不顾妈妈的劝告，执意要走遍森林的每一个角落。这一日，善良的祖孙俩白马藏医老爷爷（高群 饰）和孙子小风（喻小风 饰）上山采草药，小风意外结识了偷偷溜出去玩的平平。未过多久，平平不慎落入猎人设下的陷阱，危急时刻得到了小风的救助。 到手的猎物跑掉，令猎人独角（吴笑平 饰）大为光火，他想方设法要抓到熊猫母子，而勇敢善良的小风将尽最大的努力保护可爱的熊猫朋友……
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!
故事讲述了在22世纪，日本国已不复存在，取而代之的是被称为“第十七极东帝都管理区”的区域。人们生活在相互信赖、生活安逸的理想世界中，但一种奇怪的致死疾病“Degration”却开始在人间肆虐。而主人公风澄彻则被卷入了与另一个世界的纷争，不得不与另一个自己展开对决…
