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.

　　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。

Five best friends trying to do the right thing in heartlake city, whilst trying to figure out friendships and what's important along the way.　　五个最好的朋友试图在中心湖城市做正确的事情，同时试图找出友谊和什么是重要的一路。

　　失去父亲后，3个曼男孩每年回到家庭小屋来纪念他，但是当他们与一个秘密的未婚夫一起走进他们的妈妈时，他们的旅行变成了一个疯狂的考验，看他是否有足够的曼加入这个家庭。

一个地下黑帮组织的非法死亡竞赛活动，获奖者可得到100万美元。男主角瑞安（肖恩.法瑞斯（《拳皇》《幽灵战队》））为拯救自己和被绑架的女友，只有博命一拼。