When Lila, the new girl at school, lies to everyone that she and Ladybug are close friends, Marinette becomes jealous since she was flirting with Adrien. While spying on Adrien and Lila in the library Tikki, her kwami, is desperate to get her hands on Adrien's book. But when Lila steals the book, she lies to Adrien at the park that she's the descendant of a super heroine. When Marinette's jealousy takes over, she humiliates Lila as Ladybug in front of Adrien. Jealous and upset, Lila is influenced by Hawk Moth and turns into Volpina, a villain who has the power of illusion.

It's Christmas in Paris, a time for generosity, giving and spending time with family. At least not for everyone, Adrien has to celebrate his first Christmas without his mom, and he thinks that his father is not interested in celebrating the holiday with him this year, which inspires him the idea to run away from home as Cat Noir to sing out his anger in the cold and snow. When the news of his disappearance spreads all over Paris, Adrien's friends go out searching for him while Marinette transforms as Ladybug to search the cold and snow for the boy she secretly loves. But things get worse when she accidentally causes a man dressed as Santa to get akumatized on Christmas Eve, now Ladybug and Cat Noir have to stop him before he destroys the holiday for everyone.

After Marinette learns more about the Miraculous book she took from Adrien, she begins to suspect his father of being Hawkmoth. Meanwhile, Gabriel, furious over Adrien losing the book, gets akumatized into The Collector.

After Chloe's latest prank puts her friendship with Adrien at risk, she throws a party at the hotel for the entire class in an attempted display of niceness. However, she snaps after seeing Adrien dancing with Marinette and lashes out at her butler, getting him akumatized into Despair Bear.

Nadja Chamack, news reporter, invites Ladybug and Cat Noir for an interview. Nadja, noticing the playful conversation between the 2 superheros, questions if they are a couple. Ladybug denies they are together and Cat gives little remarks that make it seem like they are. Not wanting to answer personal questions that could reveal her identity, Ladybug leaves the interview before it is over. Nadja's ratings drop and her boss tells her she can no longer have her prime time show. Hawkmoth sends an akuma and turns her into Prime Queen, a villain who can reach through screens and can handle all things tech. Prime Queen uses people who called into her show as bait for Ladybug and Cat Noir. Prime Queen puts them through the tasks of saving Chloe from a speeding train and Alya from falling and drowning in a river. Prime Queen's main goal is for the superheros to confess their love for one another and to take the miraculouses.

Marinette's grandma visits and gets akumatized into the Befena.

A mysterious masked fencer is humiliated in a duel against Adrien. Boiling with rage, it breaks and it is akumatized in Riposte, and its saber seeks revenge.

Markov, a small robot invented by Max is akumatized in Robostus, a villain that can give life to unanimated objects.

The Butterfly is trap at its own game when the Miraculous he sends does not reach the desired target. Ladybug and Cat noir will have to face a giant baby.

Mr. Damocles becomes the perfect target for Hawk Moth when his dreams of becoming a third superhero of Paris are crushed.

Legendary ice cream maker Andre gets akumatized into Glaciator.

Alya's little sisters, Ella and Etta, become Sapotis after staying up. Ladybug and Cat Noir must seek help from an ally to defeat the multiplying monsters.

After failing to find Adrien, his bodyguard gets akumatized into Gorizilla. With his new sense of smell, he is able to track Adrien throughout Paris.

After being akumatized by Hawk Moth into Captain Hardrock, Juleka's mother steers a powerful ship and blasts her music for all of Paris to hear.

Miss Bustier is akumatized into Zombizou and turns Paris into kissing zombies.

A talented swimmer named Ondine with feelings for Kim is akumatized into Syren and turns Paris into an underwater kingdom for her prince.

A young singer and dancer hold auditions for a video honoring Ladybug and Cat Noir. Chloe stops the tryouts. Anguished, the singer is akumatized into Frightningale, who uses a magic mike to try and turn Paris into a living musical.

After solving everyone else's problems way too much, Penny loses her cool and is infected with an akuma that transforms her into Troublemaker, a supervillain who causes problems instead.

Alya's overprotective, MMA fighting sister, Nora, is akumatized as Anansi, a spider-like villain. When Cat Noir is ensnared in her web, Ladybug gives the turtle miraculous to Nino. He becomes Carapace. They free Cat Noir and defeat Anansi.

After Nathaniel disregards Marc's writing, Marc is akumatized into Reverser and determined to get revenge on Nathaniel and Marinette.

A figure skater named Philippe is akumatized into Frozer and is determined to turn Paris into an ice kingdom.

After being humiliated by Gabriel Agreste, Chloé's mother, Audrey Bourgeois, is akumatized into Style Queen. Armed with a magic scepter and determined to get revenge, she attacks Adrien. How will Ladybug defeat Style Queen without Cat Noir to help her?

After failing to impress her mother by turning into Queen Bee, Chloé is akumatized into Queen Wasp.

When Chloé threatens to leave Paris, Mr. Bourgeois is akumatized into Malediktator, a supervillain armed with absolute power and determined to make his daughter stay with him.

Marinette lies about preparing a good deed to perform for others on the Day of Heroes and quickly finds her untruth spinning out of control.

Ladybug and Cat Noir face one of their most fearsome opponents when Hawk Moth sets a sinister plan into motion by akumatizing his assistant.

Lila is back in class and seems to get everything she wants from her classmates, but Marinette believes she is lying and does not trust her, and she has the attention of her love Adrien.

Lila tricks Adrien into hanging out with her, when Kagami finds out she wants to keep Lila away from him and becomes Onichan.

Sabrina is mad at Chloé for the attention she gives to Ladybug. She becomes Miraculer and has the ability to take away powers from superheroes.

Marinette's class is having a field trip to London, but Marinette believes she cannot attend since doing so would leave Paris vulnerable to Hawk Moth. Master Fu gives her the Horse Miraculous, which grants the power of teleportation, so she can enjoy herself and be able to return to Paris in case of an emergency. Max's mother, a train conductor who directs the Startrain, dreams of being an astronaut and has taken an exam to begin training. However, a rogue akuma gets aboard the train to London in Sabrina's big suitcase after a botched attempt to akumatize Officer Roger. When Max's mother succumbs to nerves waiting for confirmation about whether she passed, the akuma infects her and turns her into "Startrain" itself, and she drives the train into outer space. Since the akuma is outside of Hawk Moth's range of influence, Gabriel is forced to rely on the heroes to rescue Adrien. Ladybug gives Max the Horse Miraculous, turning him into the superhero "Pegasus". With his aid, the heroes teleport the train back to Earth, so Ladybug can safely purify the akuma. Afterwards, Max's mother gets the e-mail confirming she passed her exam, much to her delight.

When he can't find anyone to test his video game that pits formerly akumatized villains against one another, Max again becomes one himself: Gamer 2.0. Let the games begin!

Lila manipulates all Marinette's close ones, who turn against her, but an even bigger problem awaits Marinette: she is going to have to face a sentimonster that has taken the appearance of Ladybug.

Without Ladybug and Cat Noir knowing it, Shadow Moth patiently sets his final attack in motion.

Shadow Moth's trap closes in on Ladybug and Cat Noir, threatening to turn their fate upside down.

After stealing the Miracle Box, Shadow Moth turns into Monarch and uses the Rabbit Miraculous to return to a vulnerable moment in Ladybug and Cat Noir's past to capture their Miraculous.

Marinette decides on giving up her love of Adrien to avoid any more disasters and focus on preparing to battle Monarch, but the days go by and no akumatized villains have appeared yet. Has Monarch given up?

What if Monarch could force the Kwamis who know Ladybug's address to lead him to her? The unfortunate little creatures would have no choice but to obey him... And if Monarch showed up at Marinette Dupain-Cheng's home, would she be able to escape him?

Marinette is surprised to discover that a former schoolmate, Socqueline, is posing as Ladybug. She tries to dissuade her from taking such a risk, but Monarch has his eyes on her.

Ladybug can't give Nino a Miraculous but wants to keep helping so he creates an Aid Network at school. They must figure out Monarch's new power. But Marinette, Alya and Adrian aren't convinced. Would the superheroes agree to such a plan?

While Marinette tries to convince herself that she has to stop being in love with Adrien because it diverts her from her superhero role, she discovers that she has feelings for someone else.

Marinette tries to convince herself that she loves Chat Noir to forget about Adrien. Adrien has given up on being in love with Ladybug, is trying to declare his feelings to Marinette.

Marinette uses Tikki's Reunion to summon Johanne of Arc, a previous Ladybug holder, to ask about the possible romance between her and Chat Noir. Meanwhile, Pharaoh is reakumatized and asks questions for Ladybug to solve.

Despite Alya's protests, Marinette decides to pursue her new love for Cat Noir by going on a romantic night out with him. But they are spoiled after encountering a Ladynoir fan who reveals some unsettling revelations about their love lives

Tikki and Plagg are sad to see their carriers so sad to be forced to give up their feelings. The Kwamis will then make a radical choice that will change many things in Paris.

Monarch is faced with a unique opportunity that he refuses to lose. The Kwamis made a decision that completely distracted Marinette and Adrien from their responsibilities. For better and for worse.

Marinette's friends decides to help her to get closer to Adrien, then the whole gang finds out that one should always be clear with friends.

Luka develops a special interest in Bob Roth, who would do anything to make money. Luka himself would do anything to defend his values and his friends.

Marinette starts to feel traumatized when she and Adrien prepare to have a normal date at the pool as she once had a crush on Kim last year and Chloe pulled a series of nasty pranks on her.

Monarch is ready to do anything when he senses a unique occasion to get a real second chance even if it is his last chance to seize the Miraculous.

As the gang comes up with yet another overcomplicated plan to bring Marinette and Adrien together, Lila uses her talent for manipulation to persuade Kagami that Marinette is a liar who abuses everyone else's kindness. Shocked, Kagami is akumatized into Riposte Prime. She lays into Marinette at the very moment when Adrien had managed to finally make her feel comfortable around him. Will Lila's poisonous lie ruin the friendship between Kagami, Marinette and Adrien?

When Marinette and Zoe are chosen to organize the end-of-school-year party, Marinette learns that Zoe is secretly in love with someone in ninth grade at school. Zoe says that she cannot talk about it. To Marinette, this can only mean one thing: Zoe is in love with Adrien! But before she finds out whether she is right or not, a common enemy of the girls will try to ruin their beautiful friendship

Adrien must attend a dance organized by his father and Mrs. Tsurugi. He will be the King of the Ball alongside Kagami, who has been chosen to be this year's Queen. But neither of them wish to go for the dance.

Marinette decides to have a heart-to-heart with the father of the boy she loves. By seeing her courage her friend Kagami finally dares talk to her mother.

Lila uses an incident in class to calls for new elections to replace Marinette as class representative.

Junior high will soon be over, Lila and Chloe are planning to defend their classmates' future before their teachers; Marinette and Adrien worries what the two brats' next evil plan will be.

The end of school year is nearing, and rebellion is brewing. Monarch decides to on a plan that is dangerous for his secret identity and for Ladybug and Cat Noir, too.

Chloe and Monarch are more powerful than ever, Ladybug and Cat Noir wonder about their powers. Marinette and Adrien's lives are about to change forever.

Adrien disobeys father to go find Marinette but she discovers a secret nothing could have prepared her for.

Monarch places the final pieces of his villainous plan on his chessboard of evil.

Monarch's ultimate plan is in motion. Nothing seems able to stop him now. Especially considering that, while the world descends into chaos, the supervillain has just trapped Ladybug in person...

Lila uses an incident in class to calls for new elections to replace Marinette as class representative.

Lila is back in class and seems to get everything she wants from her classmates, but Marinette believes she is lying and does not trust her, and she has the attention of her love Adrien.

The end of school year is nearing, and rebellion is brewing. Monarch decides to on a plan that is dangerous for his secret identity and for Ladybug and Cat Noir, too.

Junior high will soon be over, Lila and Chloe are planning to defend their classmates' future before their teachers; Marinette and Adrien worries what the two brats' next evil plan will be.

Tikki and Plagg are sad to see their carriers so sad to be forced to give up their feelings. The Kwamis will then make a radical choice that will change many things in Paris.

Shadow Moth's trap closes in on Ladybug and Cat Noir, threatening to turn their fate upside down.

After stealing the Miracle Box, Shadow Moth turns into Monarch and uses the Rabbit Miraculous to return to a vulnerable moment in Ladybug and Cat Noir's past to capture their Miraculous.

Marinette decides on giving up her love of Adrien to avoid any more disasters and focus on preparing to battle Monarch, but the days go by and no akumatized villains have appeared yet. Has Monarch given up?