联合地球历192年，来自外太空的神秘生物入侵地球，它们大肆破坏，屠杀人类，地球变成一片火海，人类文明危在旦夕。
　　某天，外宇宙开发基地发现并拯救了一名从空中坠落的男子，从该男子口中，他们得知外星入侵者名叫“拉达姆”，但关于外星人的动机和该男子的来历却一概不知。不久后，人们发现这个男人竟拥有和入侵者对抗的强大实力，而他变身成为的宇宙骑士却和“拉达姆”的凶残战士们何其相似！
　　代号狄波威（D-Boy）的神秘男子，他究竟是什么人？救世主？抑或终结者？

　　故事发生在遥远的某银河系中，一颗名叫阿斯达穆的行星之上。穆尼斯城因为天空中漂浮着月亮而被称为“月亮之眼”，有朝一日能够登上月球，是所有穆尼斯人心中的梦想。在这里，一种被称为“Big Foot”的机械人十分流行，它可以被用作各个途径，年轻人们则更喜欢将它们运用到一种名为“BFB”的运动竞技比赛之中。
　　丹（下野紘 配音）是生活在罗林镇的平凡青年，和大部分人不同，丹对机械人的存在充满了厌恶，因为丹的妹妹可可（花泽香菜 配音）正是因为机械人而失去了双腿。一次偶然中，丹偶遇了一位名叫米兰达（伊藤静 配音）的少女，米兰达带领丹驾驶着Big Foot，在其中，丹找回了久违的快乐，并且对BFB运动产生了浓厚的兴趣。

　　在一副未完成的画中，画中的人搞起了等级社会，画全人歧视没画完人，更不把线稿人放在眼里。画之国的城堡被画全人蜡烛大帝所掌控，他把没画完人和线稿人驱逐到森林中。画全人拉莫和没画完人克莱尔相爱，遭到了蜡烛大帝的追逐围捕。机缘巧合拉莫遇上了克莱尔的朋友罗拉和线稿人布吕姆，三人被追到了食人森林里。他们决定去寻找消失的画家，让其完成这幅未完成的画，为没画完人和线稿人涂上色彩。在寻找的路上，三人跌出画中，来到了画家的画室。邂逅了闲卧窗边迷人的夫人、脾气不太好的画家自画像、语速很快的蓝色小丑。他们穿梭在画与画中，在威尼斯的狂欢节里奔跑，遇到死神的追逐，最终回到了画室，虽未找到画家，但得到了画画的技巧。
　　而另一边，克莱尔被捕，没画完人和线稿人被拉去做劳工，蜡烛大帝在着手一场仪式，得到颜料和技巧的拉莫一行人回来的道路险境丛生，最终他能否赋予没画完人和线稿人色彩呢。

　　With time, Marinette and Adrien ended up becoming friends. But the collège girl discovers that declaring her feelings for her friend is not so simple, in fact, it will be almost the opposite!
　　For Ladybug and Cat Noir, despite their new powers and teammates that they can call upon when the situation requires it, the fight with Hawk Moth becomes harder and harder. Their opponent is always stronger as long as he can call on Mayura, a villain who can create allies for the Akumatized, the supervillains.
　　More powers, more action, more villains, and more emotions! Season 3 will put Adrien and Marinette to the test: Will they be able to keep their secret and prevent their private life from interfering with their superhero adventures?

　　2200 年，私家侦探艾琳·鲁比 (Aline Ruby) 和她的机器人搭档卡洛斯·里维拉 (Carlos Rivera) 受一名富商雇佣，追查一名臭名昭著的黑客。在火星上，他们深入火星首都的腹地，在那里他们揭开了一个关于脑力农场、腐败和一名失踪女孩的黑暗故事，她掌握着威胁要改变宇宙面貌的机器人的秘密。

　　By daylight, Marinette Dupain-Cheng and Adrien Agreste are ordinary teenagers. But unbeknownst to their family and friends, the two of them carry a huge secret...using the powers of magical creatures called Kwami, they transform into the superheroes Ladybug and Cat Noir! With a mission to protect the city of Paris from the evil Hawk Moth, the two of them must learn to cope with their new responsibilities, as well as ordinary troubles involving love, school, family, and friends. Most of all, they must learn to put their romantic feelings aside in order to perform their duty, unaware of each other's true identities.
　　The second season premiere is scheduled for a global launch around September–November 2017 in Europe, At a panel at San Diego Comic-Con 2017, it was announced that the second season would have its North American release on Netflix in December 2017, with 13 episodes to be released. KidsClick will start airing season 2 of this show in the US starting 30 August 2018, marking the first time that Season 2 of this show airing on American over-the-air television. A third season is also in development. On 22 January 2018, Zag posted on Instagram that the crew was working on a fourth and fifth season. On 31 August premiered a new series with Miraculous: Tales of Ladybug & Cat Noir which this time is in chibi style. On 5 September, 2018, Skydance Media has acquired the live-action film and live-action television rights.