剧情设置在现代巴黎，中法混血的Marinette Dupain-Cheng（玛丽内特·杜平-程）是一个普通的中学女生，性格有些犹疑羞涩，梦想成为时装设计师，暗恋同班的帅气男生Adrien Agreste（阿德里安·阿格里斯特）。当有坏人威胁巴黎时，Marinette化身正义勇敢的英雄Ladybug（瓢虫），搭档爱调戏人的Chat Noir（黑猫），一起打击邪恶势力。但Marinette并不知道面具下的Chat Noir正是她一直不敢表白的男生Adrien，而Adrien也不知道自己的暗恋对象Ladybug却是Marinette。
Set in modern-day Paris, the series focuses on a teenage junior high school girl named Marinette Dupain-Cheng and her classmate and crush Adrien Agreste. When evil arises, Marinette becomes a superhero named Ladybug, while Adrien becomes Chat Noir/Cat Noir. Not knowing each other's true identity, the two work together to protect Paris from a villain named Hawk Moth who covets their powers.
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!
《瓢虫雷迪》（法语：Miraculous, les aventures de Ladybug et Chat Noir，又简称为Miraculous Ladybug），是由法国的Zagtoon、Method Animation、意大利的De Agostini Editore、日本东映及韩国SAMG Animation所共同制作的动画系列，主角玛丽娜变身为瓢虫雷迪，与伙伴黑猫诺尔一起对抗在巴黎制造混乱的神秘反派。
2015年10月19日在法国的TF1频道首播，已播至第五季。2018年本作获得青少年票选奖的电视动画节目奖。
