Marinette meets Tikki for the first time and becomes Ladybug. Then later she meets Cat Noir (which has a crush on Ladybug) and they both must fight with some weird butterflies called "Akumas" sent from Hawk Moth.

Ladybug and Cat Noir realize Hawk Moth's behind the akuma disaster and fight for the safety of Paris. Also, while Marinette is trying to have a relationship with Felix.

During trying to keep the relationship with Felix, another teenager called Luka shows up, which looks to know about her feelings. There is also Jagged Stone's concert, but looks like he's akumatized.

After the Jagged Stone incident, Ladybug and Cat Noir figured out what Akumas actually are. Meanwhile, another person gets akumatized and turns to Stormy Weather.

On Felix's birthday, Nino, his best friend is akumatized into The Bubbler

Alya, Marinette's best friend is akumatized in lady Wifi. P.S. Romantic moment between Ladybug and Cat Noir.

As Gabriel prepares to help the heroes instead of fight them, an unexpected surprise causes a series of shocking events.

Gabriel attempts to keep Felix away from all harm at all costs, but when a powerful villain attacks Felix must find a way to break free. Marinette struggles with mixed feelings.

Marinette tries to ask Felix out. Felix struggles to communicate what he truly wants to his father. The Mime attacks the Louvre Museum.

Ladybug and Cat Noir face new villain whose power is built on lies, little do they know they're falling right into place for Hawkmoth's grand plan.

Ladybug and Cat Noir despite their confused feelings face Volpina. Hawkmoth finishes preparation for his ultimate plan.

The clock is ticking as Hawkmoth enacts his grand plan.

As Hawkmoth's attack on Paris reaches it's climax so does tensions between Parisians and their views on Heroes, in order to stop it all Ladybug and Cat Noir will need to prove their worth.