Star and Marco try to determine who has been redecorating her room, with Mr. Diaz only accounting for a small project. Marco discovers that Star has been "sleep spelling", that is, casting spells when sleepwalking. He tries psychology to try to treat her but learns that she is actually trying to defend herself from an intruder, revealed to be Princess Smooshy, an ugly "goblin-elephant" princess who wants to steal Star's face so she can avoid getting sent back to St. Olga's Reform School for Wayward Princesses after escaping it.

The episode was rated 7.68 from 87 votes.

Star misunderstands when she hears that the school football team is going to "get slaughtered".

The episode was rated 7.73 from 196 votes.

After failing a math test, Star tries to convince her teacher to change her grade.

The episode was rated 7.76 from 265 votes.

Star's best friend from her home dimension visits and is threatened by Star's new friendship with an earthling named Marco.

The episode was rated 7.82 from 240 votes.

Star and Marco must navigate through a maze-like store, Quest Buy, to get a new wand charger before Star's wand dies forever.

The episode was rated 7.83 from 150 votes.

Star receives the royal magic wand but her parents panic and send her to Earth.

The episode was rated 7.84 from 458 votes.

Star Butterfly recruits her classmates, Miss Skullnick, and the Dojo Sensei to participate in a battle reenactment of Mewni's Independence Day. Ludo and Toffee use a special floating eye device to spy on Star and her activities. Ludo's minion Buff Frog infiltrates the reenactment as one of the monsters to try to steal the wand.

The episode was rated 7.86 from 92 votes.

Miss Skullnick's class finds the field trip to the Echo Creek Museum of Paper Clips boring, so Star volunteers to lead a trip to the Dimension of Wonders and Amazement. But when she lets the students do whatever they want, she puts the entire class in danger. Meanwhile, Miss Skullnick visits an exhibit on troll history. When a yarn monster captures the class, Star and Miss Skullnick must work together to save them.

The episode was rated 7.88 from 105 votes.

Star and Marco go undercover as new princess students in order to break Flying Princess Pony Head out of St. Olga's on her birthday. They discover that Pony Head has been brainwashed to be a compliant princess and try to evade the robot guards and the reform school's headmistress Miss Heinous.

The episode was rated 7.91 from 106 votes.

Marco's hurt arm is accidentally turned into a giant tentacle.

The episode was rated 7.91 from 206 votes.

Star freezes time with her wand so that Marco can appear at Echo Creek Academy on time for his morning greeting nod with his crush Jackie Lynn Thomas. But when she is unable to cancel out the effects, she and Marco visit the Plains of Time in order to get Father Time to restart time again.

The episode was rated 7.93 from 121 votes.

Gustav comes to visit the Diaz family.

The episode was rated 7.98 from 157 votes.

Star starts sprouting hearts all over her body, the telltale sign of "Mewberty."

The episode was rated 8.02 from 178 votes.

Star's ex-boyfriend Tom invites her to the Blood Moon Ball, an Underworld event that occurs once every 667 years. Tom claims he has turned over a new leaf, having hired an anger management consultant. Marco does not believe Tom has changed but Star decides to go anyway. When Marco disrupts Tom's plan to take Star for himself under the Blood Moon's light, Tom reverts to his old self.

The episode was rated 8.25 from 143 votes.

Toffee has taken over Ludo's castle; he has one of Ludo's minions abduct Marco. Star allies with Buff Frog (and the kicked-out Ludo) to storm the castle and beat up Ludo's former minions and free Marco. However, Toffee arranges for the box imprisoning Marco to gradually collapse, forcing Star to destroy her wand in exchange for sparing Marco. The resulting explosion destroys Ludo's castle and Toffee, after which Star banishes Ludo. Star is left with a new wand that is missing a piece.

The episode was rated 8.49 from 129 votes.