After a guardian of magical jewels turns an awkward girl and a popular boy into superheroes, they can never reveal their identities — even to each other.

Miraculous holders from another world appear in Paris. They come from a parallel universe where everything is reversed: the holders of Ladybug and Black Cat Miraculouses, Shadybug and Claw Noir, are the bad guys, and the holder of the Butterfly Miraculous, Hesperia, is a superhero. Ladybug and Cat Noir will have to help Hesperia counter the attacks of their evil doubles and prevent them from seizing the Butterfly's Miraculous. Can our heroes also help Hesperia make Shadybug and Claw Noir better people?

Bigfoot, Adam's father, wants to use his fame for a good cause. Protecting a large wildlife reserve in Alaska sounds like the perfect opportunity! When Bigfoot mysteriously disappears without a trace, Adam and his animal friends will brave anything to find him again and save the nature reserve.

In 2200, private detective Aline Ruby and her android partner Carlos Rivera are hired by a wealthy businessman to track down a notorious hacker. On Mars, they descend deep into the underbelly of the planet's capital city where they uncover a darker story of brain farms, corruption, and a missing girl who holds a secret about the robots that threatens to change the face of the universe.

On school break, Marinette heads to Shanghai to meet Adrien. But after arriving, Marinette loses all her stuff, including the Miraculous that allows her to turn into Ladybug!

To save the future from a terrible fate, Marinette becomes Chronobug and teams up with Bunnyx to defeat a mysterious opponent who travels through time. Who is this new supervillain, and why are they obsessed with exposing Marinette's secret superhero identity? Marinette's only hope is to defeat her new opponent to prevent the end of Ladybug and time itself!