In modern-day Paris, teenagers Marinette Dupain-Cheng and Adrien Agreste transform into superheroes when evil arises. Marinette transforms into her superhero persona, Ladybug, while Adrien transforms into his superhero persona, Cat Noir, using magical jeweled objects known as the Miraculous. Not knowing each others' true identities, the two work together to protect Paris from the mysterious villain, Hawk Moth, who covets and attempts to steal their powers by using his akuma, butterflies infused with negative energy, to transform Paris' everyday citizens into supervillains through a negative emotion that they have recently felt or are feeling.
The first season ends with Marinette meeting Master Fu, the Guardian of the Miraculous, the man who gave Marinette and Adrien their Miraculous. The second season opens with Hawk Moth's identity being revealed as none other than Gabriel Agreste. This season also sees Marinette under Fu's tutelage, learning about the Miraculous. Circumstance requires Marinette to loan various Miraculous to friends and allies to fight some supervillains for temporary purposes. These 3 allied heroes are called back at the season's end when Hawk Moth manages to traumatize over two dozen civilians. The heroes are victorious, but Hawk Moth manages to escape with the aid of the Peacock Miraculous holder, Mayura, Gabriel's assistant, Nathalie.
