When brilliant, altruistic Lunella Lafayette accidentally brings a dinosaur to the Lower East Side, she finally has the brawn to match her brains and protect her community.
When Lunella finds a nasty comment on her Moon Girl social media page, her fixation on the troll threatens to take over her life.
When Lunella runs the rink for a night, she agrees to Casey's get-rich-quick scheme, which threatens Moon Girl's reputation and her family's beloved business.
When Lunella loses a game of chess against a supercomputer, her obsession with winning drives the frustrated computer to program every device in the school to attack her.
When Lunella creates a chemical to change her hair, she accidentally turns her mane into a vengeful villain that vows to ruin her.
The Beyonder gloms onto Lunella to learn about humanity, just as she's struggling to win a big science competition.
When Lunella seemingly gets hurt and is stuck in bed, Casey must step in as Moon Girl for the day.
When Devil Dinosaur gets jealous of sharing Lunella with her class hamster and accidentally sets the animal free, he must search New York City to bring the furry friend home.
Lunella creates a device that allows her to fast forward through mundane chores and tasks, but she struggles to handle the unexpected side effects.
Lunella tries to overcome her awkwardness about fitting in at a slumber party by creating a mind-reading device but accidentally switches brains with Devil Dinosaur.
Moon Girl fights to save the LES from changing.
Hoping to help Casey have an epic bat mitzvah, Lunella makes an appearance as Moon Girl, which ultimately brings out the worst in Casey and causes a rift in their friendship.
Lunella uncovers the history of the Original Moon Girl as she struggles to thwart a powerful villain's plan to use her portal for evil.
Moon Girl faces her greatest challenge yet and puts everything on the line.
Moon Girl and The Beyonder become stranded on a desolate alien planet; the two set out to find a rumored black hole in hopes of getting home.
Lunella tries to juice up her new super suit and goes overboard; she accidentally juices up a dangerous desert scorpion.
When Devil Dinosaur eats a dangerous Moon Girl gadget, Lunella and Casey must shrink themselves to retrieve it.
When Moon Girl must transport Quickwhip to S.H.I.E.L.D., keeping the criminal in custody becomes harder than she imagined.
Moon Girl’s rivalry with a new teenage super-foe, Kid Kree, threatens her budding friendship with his human alter ego, Marvin.
Lunella and the Volleyball team get trapped in the locker room by the opposing team coach after she finds out that Brooklyn used to play on the boy's team. This episode was reportedly pulled by Disney and will not air in the United States due to its content involving a transgender athlete storyline. The decision to withhold the episode has been attributed to the current political climate, particularly in light of recent debates surrounding transgender athletes' participation in sports. Despite being fully produced and ready for release, Disney chose not to broadcast it. The episode was later leaked online.
When The Beyonder gives an arcade machine the ability to grant wishes, Lunella is pumped to use it.
When I.S. 833 gets an impressive science teacher, Lunella is so eager to impress her that her drive toward perfectionism starts doing more harm than good.
When Lunella and Devil Dinosaur spend the weekend apart after a disagreement, Devil Dino gets mixed up with a rag-tag group of ex-super-hero sidekicks.
Pops and his new canine pal enter a dog show.
Lunella and the S.T.E.M. club pull off a museum heist.
An old personal feud threatens to ruin Roller Jam.
Lunella attends her first school dance.
Moon Girl teams up with Turbo.
The Lafayettes learn the truth about Lunella.
