Normal high school kids by day, protectors of Paris by night! Miraculous follows the heroic adventures of Marinette and Adrien as they transform into Ladybug and Cat Noir and set out to capture akumas, creatures responsible for turning the people of Paris into villains. But neither hero knows the other’s true identity – or that they’re classmates!
Marinette is babysitting a child named Manon, when her best friend Alya visits her. Alya tells Marinette that Adrien is having a photoshoot nearby and takes the three of them to watch him. Meanwhile, Aurore Beauréal has just lost to her competitor, Mireille Caquet, to become the next weather forecaster. Infuriated, she becomes influenced by Hawk Moth and turns into 'Stormy Weather', a villain who controls the weather.
Armed with his magical bubble-wand, Nino becomes The Bubbler, a villain who wants to rid the city of all parents who get in the way of kids having fun. Can Ladybug & Cat Noir avoid his bubbles and save the day?
Marinette makes the mistake of leaving behind a history notebook while she was out fighting as Ladybug. When Alya is the one to recover it, Marinette freaks out and, with the suggestion from her kwami Tikki, takes Alya out to a Pharaoh exhibition in order to get the notebook back from her. As they arrive, Alix's brother Jalil is discussing with his father about how one of the exhibitions on display is a resurrection spell. He believes that it could work, but Jalil's father gets angry and says it's a waste of time. Angry that his father doesn't believe him, Jalil becomes influenced by Hawk Moth and turns into the Pharaoh, a villain who can become any Egyptian god.
Alya is out to find Ladybug's true identity for her blog and stumbles upon promising evidence that shows that Chloé Bourgeois, the school's mean girl and the mayor's daughter, might be Ladybug. When Alya attempts to take a photo of Chloé's locker for evidence, she is caught and wrongfully suspended by the principal. Angry at Chloé for getting her suspended, Alya becomes influenced by Hawk Moth and turns into 'Lady WiFi', a villain who can manipulate cellphones.
Marinette's parents celebrate their 20th anniversary, leaving Marinette to take care of one of her father's special cake orders. However she gets a call from Alya to bring a banner she made for a race between her two classmates, Alix and Kim. Meanwhile, Alix is celebrating her 15th birthday when she receives a family heirloom as a present: a pocket-watch. She arrives to the race and gives her watch to Alya to protect it, however during the race multiple situations occur and the watch ends up broken. Angry at her friends, Alix becomes influenced by Hawk Moth and is turned into 'Timebreaker', a speedy super villain who can travel through time.
There is a fashion competition being held at Marinette's school and it says that winner of the competition will have their hat worn by none other than Adrien. Excited, Marinette is determined to win in the hope that Adrien will then notice her. Meanwhile Xavier Ramier, a pigeon-loving man, is told off by a policeman not to feed the pigeons and is told to leave the park. Feeling dejected, Xavier becomes influenced by Hawk Moth and turns into 'Monsieur Pigeon', a villain who has control over pigeons.
Nathanael is dreaming in class that he saves his crush from super villains when he is woken up by the teacher. Before he leaves the classroom, Nathanael trips and some of his drawings fall on the floor. They're picked up by Chloé, revealing to everyone about his crush on Marinette. Feeling angry and humilated by Chloé, Nathanael becomes influenced by Hawk Moth and turns into 'The Evillustrator', a villain whose drawings can come to life.
It's Parent's Show and Tell Day at school and Chloé comes to school with an expensive bracelet given to her by her father. After showing it off to her lackey Sabrina and putting the bracelet back in her bag, Adrien's kwami Plagg mistakes it for cheese and gets stuck inside it. When Sabrina's father Roger comes up to talk about being a policeman, Chloé exclaims that her bracelet is missing. She accuses Marinette for stealing it (since she tripped over her bag earlier) and demands that she gets arrested for it. Chloé's father, the Mayor, pressures Roger to do as his daughter says, but Roger says he can't without proper evidence. The Mayor threatens Roger to leave. Angry at the Mayor, Roger becomes influenced by Hawk Moth and turns into 'RogerCop', a villain who wants to bring justice to those who break the law.
After she attempts to ask Adrien out to the movies over the phone, Marinette accidentally leaves behind an embarrassing voicemail and rushes out to delete it before he listens to it. Meanwhile, an artist named Theo is releasing a statue in honor of Ladybug and Cat Noir. He happens to be in love with Ladybug and is excited to see her at the unveiling event, but only Cat Noir ends up coming. After the event, Cat Noir insinuates to Theo that he and Ladybug are in 'that' kind of relationship, leaving Theo envious. Sensing his envy towards Cat Noir, Hawk Moth influences Theo and turns him into 'Copy Cat', an exact replica of Cat Noir.
It's Valentine's Day and love is in the air! After reading a love poem thrown away by Adrien, Marinette comes to the conclusion that the poem is about her, making her ecstatic. Meanwhile one of her classmates, Kim, is planning to ask his crush to be his Valentine. Marinette, in her love-sick daze, encourages Kim to go for it. When Kim sees his crush, he is humiliated and rejected cruelly. Heartbroken, Kim is influenced by Hawk Moth and turns into 'Dark Cupid', a villain whose arrows can replace true love and friendship with pure hate and mean-spiritedness.
Nino is making a movie in class for a film contest but Mylène, one of the students, isn't sure about being the lead actress since she is easily frightened. After many failed attempts of shooting a particular scene, Chloé makes fun of her fright and Mylène flees the classroom in tears. Disappointed in herself, Mylène becomes influenced by Hawk Moth and turns into 'Horrificator', a monster who feeds on the fear of others.
After finding out that Chloé has been blackmailing people to not run against her for class president, Marinette ends up nominating herself for the position. Wanting to ruin the competition, Chloé sends Sabrina to Marinette's home to find some humiliating evidence to use against her. Meanwhile, Mr. D’Argencourt, the school's fencing teacher, has lost the elections to become the next Mayor of Paris to Mr. Bourgeois, Chloé's father. Bitter over the loss, Mr. D’Argencourt becomes influenced by Hawk Moth and turns into 'Dark Blade', a Parisian dark knight who plans to dominate all of Paris.
Alya shows Marinette a video of Ladybug, but Marinette accidentally deletes it. Before Alya finds out, Marinette steals her phone and frantically tries to re-create the footage. Meanwhile, Mylène's father, Fred Haprèle, is getting his first major performance at the Eiffel Tower. However, his partner Chris deliberately makes him late, forcing their manager to make Chris take the lead role instead. Hawk Moth transforms the disheartened Fred into The Mime, a supervillain who can pantomime anything to make it reality.
Marinette’s uncle, the world-renowned Chinese chef Wang Cheng, visits Paris to participate in a cooking show called The Greatest Chef in the World. Before the competition begins, Marinette and Adrien run into Chloé, who is on the judges' panel. Chloé mocks Chef Cheng for being a foreigner, and in retaliation, Marinette fires back with her own insults. Chloé sabotages Chef Cheng’s famous Celestial Soup in anger, wanting revenge for Marinette's comebacks, causing Cheng to lose the competition, failing horribly. Confused and upset, Chef Cheng becomes influenced by Hawk Moth and turns into Kung Food, a villain enslaves those who had eaten his ruined soup and who plans to cook Chloé in soup.
Collège Françoise-Dupont is sending two students to represent them at a video game tournament, where they will compete with other schools in a fighting game known as Ultimate Mega Strike III. After Marinette notices that Adrien is one of the potential candidates, she participates in the selections in order to be able to team up with Adrien. She manages to defeat another candidate, her classmate Max, who has been training for the tournament for a whole year and was looking forward to participating. Angry about all his gaming training gone to waste, Max becomes influenced by Hawk Moth and turns into the Gamer, a villain who uses a pyramid-shaped mecha-like ship, from the Ultimate Mega Strike III game, that zaps people and objects, turning them into green "experience point" balls, which upgrades his ship.
Nino has a crush on Marinette, and so Adrien tries to help him by asking her out to the zoo. Marinette thinks Adrien is asking her out and happily accepts. However, when at the zoo, Nino and Marinette are the only ones to show up; Adrien and Alya, meanwhile, are hiding out in bushes nearby, helping the two talk to each other by instructing them via earpiece. Meanwhile, Marinette's classmate Kim mocks the new black panther in the zoo, claiming to the zookeeper that he can run faster than it. Enraged by his remarks, the keeper becomes influenced by Hawk Moth and turns into Animan, a supervillain who can shape-shift into any animal.
Chloé is being harassed by something invisible, and Adrien and Marinette are immediately on the case. After talking with the concierge of the Grand Paris hotel, where Chloé lives, they discover Chloé had a fight with Sabrina, and had claimed that Sabrina is no longer her friend and is completely invisible to her. Heartbroken over her words, Sabrina was influenced by Hawk Moth, turning into the Vanisher. As Ladybug and Cat Noir fight the Vanisher, who has just shown up, Chloé decides to join in, donning a fake Ladybug costume. However, this only causes the fight to get more difficult and Ladybug forces Chloé to leave, claiming that she is endangering everyone by staying. Chloé tries to tell Ladybug that the akuma is in Sabrina's rose brooch, but Ladybug does not listen, thinking that she is lying. Only when Chloé has left the scene does Ladybug realize that Chloé was right all along, but despite this, Ladybug
Marinette is babysitting Manon. They are playing with hand-crafted dolls that Marinette made herself, Marinette playing as Ladybug and Cat Noir and Manon playing as Lady Wifi, Rogercop and Evillustrator. Because Marinette always plays as the Ladybug and Cat Noir dolls, Manon laments that Marinette always wins and bursts into tears. Feeling guilty, Marinette allows Manon to borrow her Ladybug doll. However, Nadja Chamack, Manon's mother, does not want her to borrow it, as she complains that Manon already has too many toys; they get into a dispute, resulting in the Ladybug doll getting torn. Despite that, Manon still wants to borrow the Ladybug doll, so she asks Marinette for it behind her mother's back. Marinette hesitates and decides on a compromise instead, allowing her to borrow the Lady Wifi doll instead. Chamack notices Manon plays with the doll, and angry that Manon had defied her instructions, she confiscates it from her. Upset, Manon becomes influenced by Hawk Moth and turns into the Puppeteer, a villain who can control the people Marinette's dolls are based on.
At class picture day, Marinette's classmate Juleka is hesitant about participating, as she believes that she is under a curse where any picture she is in will have her face covered. Wanting to be closer to Adrien in the photo, Chloé has her friend Sabrina lock Juleka in the bathroom while she takes her place in the centre of the photo, beside Adrien. Believing that she'll always stay cursed and unnoticed, Juleka becomes influenced by Hawk Moth and turns into Reflekta, a flamboyant villain who can zap people into making them look exactly like her.
Rock musician Jagged Stone has problems with his manager, who wants to change the look of his new album's cover and make him record a duet with XY, a hot new music artist who replaced Stone at the number-one position on the music charts. Although they agree on a compromise on the cover by having Marinette design it, Stone is later offended when he watches a interview given by XY, who claims that technology matters more than music, rock 'n' roll is no longer in style, and that Stone was no match for him. Enraged, Stone becomes influenced by Hawk Moth and turns into Guitar Villain (a reference to the title of "guitar hero" given to legendary guitarists in France), a wild musician with a pet dragon, who influences people into headbanging and dancing uncontrollably by playing his guitar.
Marinette's class is visiting the Grand Paris hotel, as part of a program to try out some of the jobs that the staff do in the hotel on a daily basis, when rock idol Jagged Stone arrives. While Jagged is checking in, an overly-obsessed fan named Vincent Asa sneaks in behind him and tries to take a picture with Stone, but he is swiftly kicked out of the hotel by Jagged's assistant, warned to never approach Stone again. Angry at being shunned by his idol, Vincent becomes influenced by Hawk Moth and turns into Numéric, a supervillain who uses a head-mounted telescopic camera to take photos of people, making them vanish and trapping them in a white empty space by "digitising" them into living portraits that appear on his apartment wall.
Marinette's classmate Rose is excited about Prince Ali's visit to Paris, but is caught at school spraying perfume on her fan letter and using a cellphone in class. Tikki feels ill, so Marinette plans to take her to a healer, but when Marinette trips on the stairs, Tikki is picked up by Chloe, who plans to give Tikki as a plush toy gift to Prince Ali. Chloe tears up Rose's letter, telling Rose that Prince Ali has no interest in her. Hurt, Rose is influenced by Hawk Moth and becomes Princess Fragrance, a villain whose perfume spray makes people serve her, and who desires to have Prince Ali for herself. The untransformed Marinette must recover Tikki and stop Fragrance from taking over all of Paris.
Nino is a contestant in a game show called The Challenge, where he has to get Mayor Bourgeois to dance. Despite being invited to see Nino, Marinette is grounded by her parents for missing too many classes at school, not knowing that she had been working as Ladybug. As Nino completes his challenge, the next contestant, a hypnotist named Simon Grimeau (Jacques Grimeau in French version), is given the challenge to hypnotize Adrien's father Gabriel Agreste. However, Gabriel refuses to participate in the challenge, causing Jacques to fail. Angry that he was not given the chance to at least try, Jacques becomes influenced by Hawk Moth and turns into Simon Says (Jackady in French version), an extravagant villain who can hypnotize someone by throwing playing cards at them.
Adrien discovers a book in his father's safe with pictures of the different Miraculous heroes and steals it to learn more. Later, a new student named Lila arrives who claims to be good friends with Ladybug in order to wow Adrien. Jealous and upset by Lila's lies, Marinette begins to tail her, during which time she watches Lila steal the Miraculous book from Adrien. Tikki notices the cover design and insists upon taking the book for further study. Lila then tells Adrien that she is descended from the Miraculous holder Volpina, prompting Marinette to transform into Ladybug and call Lila on her lies in front of Adrien. Embarrassed, Lila runs off and becomes influenced by Hawk Moth, who transforms her into Volpina, a superhero with the power to create illusions, with the hope that she can gain Ladybug and Cat Noir's trust and betray them. The plan fails, though Hawk Moth is not concerned, proclaiming that his "big day" is at hand. Afterwards, Tikki's suspicions about the book are confirmed: it is the long-lost book of lore that contains coded secrets about the Miraculouses. She then brings Marinette to meet the Great Guardian, Master Fu.
A prequel of the series. It's Marinette's first day of school. Hawk Moth captures a butterfly kwami named Nooroo and forces his allegiance. Hawk Moth's butterfly brooch allows him to give someone a superpower they desire and to make that person obey his will. He plans on using his new powers for evil purposes, intending to create villains to lure the heroes out to fight them, so he can steal their Miraculouses and gain absolute power.
The next morning, Marinette brings her earrings to school and slips them into Alya's bag, still upset for forgetting to purify the akuma and convinced Alya would be a better Ladybug. Adrien sneaks to school, desperate to leave his house and make friends.