Marinette and Adrien, two junior high students, have been uniquely chosen to save Paris from the evil doings of the villain Hawk Moth. These two live a normal life of going to school and dealing with friends, family and growing up. But when evil threatens, they transform into Ladybug and Cat Noir and gain super powers with the help of their magical pets.

Marinette and Adrien seem like normal kids, but they both possess a fantastic secret. When danger threatens their beloved Paris, Marinette and Adrien magically transform into the superheroes Ladybug and Cat Noir. They will do whatever it takes to defeat the evil Hawk Moth and the villains he creates, including saving a kidnapped prince, outwitting a fake ally, and battling a villain with the exact same powers as Ladybug.

In the heart of Paris, a kind and eccentric millionairess wills her entire estate to Duchess, her high-society cat. Duchess has three little kittens. A greedy, bumbling butler pulls off the ultimate catnap caper. Now it's up to the rough-and-tumble alley cat, Thomas O'Malley, and his band of swingin' jazz cats to save the day.