
Marinette seems to be a normal teenage girl -- she dreams of becoming a fashion designer, is a bit awkward and has a crush on a classmate. But she has a secret other teenagers don't have -- she lives a double life as a crime-fighting superhero known as Ladybug. She uses her superpowers to help protect her native Paris from supervillain Hawk Moth. She is assisted, reluctantly, by fellow hero Cat Noir, even though she insists she doesn't need him -- a stance she might not take if she knew his alter ego is her crush, Adrien. Together, Ladybug and Cat Noir help keep Paris safe from Hawk Moth and other villains.
As her grandparents' 75th birthdays approach, Marinette learns news that will turn hers and her family's lives upside down.
Seemingly normal students Marinette and Adrien are chosen to save Paris from evil.
Afraid that Marinette and Adrien's relationship is failing, Nino suggests making them Carapace and Rena Rouge's deputies, unaware that they are already Ladybug and Cat Noir.
When Adrien decides to make a documentary about his father Gabriel Agreste, Marinette does her best to protect her secrets.