After having skirmished with a number of dangerous monsters, Star Butterfly arrives on Earth to live with the Diaz family. However, rather than living a normal life, Star continues on having to battle villains both throughout the universe and in their high school, although if only to protect her extremely powerful wand, an object which she is still confused with.
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Episode 1
Star Comes to Earth
As tradition dictates, Star receives the royal magic wand for her 14th birthday, but her parents worry that she is not ready for the responsibility and send her to a…
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Episode 2
Party With a Pony
Star's best friend from her home dimension pays a visit and feels threatened by Star's new friendship with Marco.
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Episode 3
Match Maker
Star fails her first test, so she tries to play match maker for their classroom teacher to get a better grade. However, she winds up turning her into a troll.
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Episode 4
School Spirit
While Marco is distracted by protecting his friend, the new school mascot, from being kidnapped by their football rivals, a confused Star believes this to be an upcoming battlefield and…
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Episode 5
Monster Arm
Marco breaks his arm before a Karate tournament. Star uses her wand to fix it, but accidentally gives him an evil sentient tentacle arm.
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Episode 6
The Other Exchange Student
Star vies for attention with a foreign exchange student who is visiting the Diaz family.
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Episode 7
Cheer Up Star
Star is feeling down when her crush Oskar has no calls from her, so Marco tries to cheer her up only that he accidentally summons Ludo and his army of…
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Episode 8
Quest Buy
Star and Marco must go to "Quest Buy", a maze-like store to find a charger for Star's wand.
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Episode 9
Diaz Family Vacation
Star takes the Diaz family out vacation to her home dimension of Mewni.
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Episode 10
Brittney’s Party
Star doesn't get invited to Brittany's birthday party and is desperate to get into it.
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Episode 11
Mewberty
Star goes through mewberty, which covers her body in purple hearts and sets her off onto all the boys in school.
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Episode 12
Pixtopia
Marco and his friends work off their debt in the Shard Mines.
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Episode 13
Lobster Claws
Ludo fires the lobster monster from his group and the creature doesn't know what to do, so Star and Marco try to help him out.
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Episode 14
Sleep Spells
Star is sleepwalking and casting magic chaotically.
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Episode 15
Blood Moon Ball
Star accepts her ex-boyfriend Tom's invitation to Demon Prom, but Marco is suspicious of Tom's intentions.
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Episode 16
Fortune Cookies
Marco convinces Star that fortune cookies contain magical prophecies, which leads her to dangerously believe a fake fortune.
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Episode 17
Freeze Day
Star accidentally freezes time with her wand and then tries to convince Father Time to set things right.
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Episode 18
Royal Pain
Star's dad makes an unexpected visit and soon wears out his welcome.
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Episode 19
St. Olga’s Reform School for Wayward Princesses
Star must face her greatest fear and travel to St. Olga's Reform School for Wayward Princesses to bust out Flying Princess Pony Head for her birthday.
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Episode 20
Mewnipendance Day
Star leads a battle reenactment as part of a Mewni Independence Day celebration with her friends on Earth.
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Episode 21
The Banagic Incident
Star sees a commercial for a magical Earth product.
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Episode 22
Interdimensional Field Trip
Star leads a class field trip to a museum in another dimension and puts the entire class in danger.
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Episode 23
Marco Grows a Beard
When Star flubs the spell used to help Marco grow a beard, the beard grows out of control and engulf the house.
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Episode 24
Storm the Castle
When Marco is captured by Toffee and held for wand-ransom, Star enters into an unlikely alliance with Ludo and Buff Frog.