As the academy teachers gear up to battle a powerful foe, they forbid their students from leaving the dorms. But one rider doesn't follow the rules.

When Layla makes a mistake over summer break that threatens all of the island's magic — and its unicorns — the riders saddle up to help set things right.

Miss Primrose accelerates the students' training by sending them to an advanced obstacle course. But will competition get in the way?

To learn more about grim magic, Sophia, Ava and Layla sneak into the library after hours to borrow a restricted book that proves to be too powerful.

Sophia races to Starglow Lake to battle the Star Snatcher for the last crown star. Back at the dorms, Rory tries out for a secret society of pranksters.

When grim magic contaminates the academy's water supply, the unicorns risk losing their power unless Sophia can save Starglow Lake with an unlikely ally.

Eager to decode the message from the Whispering Willows, Sophia skips party planning to visit the Vision Pool — right after promising Ava she wouldn't.

The Sapphires try everything to get Sophia and Ava to stop fighting, but they've got bigger problems: Two dastardly henchmen are after the grimstone.

At Unicorn Academy, regular teen Sophia has a lot to learn about fantastical creatures, but a dark force threatens to return and destroy unicorn magic!

Ava throws a party for a foal that's been causing chaos around campus while Sophia investigates her father's connection to the Unicorn Constellation.

For their final test, the students must infiltrate ogre-guarded ruins and rescue a hostage before the last bell rings... or risk immediate expulsion.

Without the help of their teachers, the students must work together to take on the evil Ravenzella all by themselves. Unicorn Academy depends on it!

Working together unlocks a new bond for the Sapphire riders — and with it, new abilities. Then, Valentina comes clean to Sophia about the crown stars.

Sophia's good intentions lead to catastrophic events. Now the fate of Unicorn Island depends on the Sapphires — and the one test they dare not fail.

While riding the Skyberry Trail, Wildstar gets spooked by grim magic, sending the group racing to a long-forgotten temple full of mysteries — and danger.

Using a sleepover at the stables as their cover, the Sapphires sneak out in search of the crown stars. But they're not the only ones looking.

Ms. Wildwood tasks the Sapphires with keeping wild unicorns safe from a volcano, which Sophia uses as an opportunity to search for another crown star.

On a Sapphire camping trip, a constellation that only appears every five years sends a special surprise down to Earth. But something troubles Wildstar...

A legendary unicorn rider visits campus, stirring tensions between Sophia and Valentina. Layla gets jealous when Glacier reunites with an old friend.

While gathering starburst flowers for the Fairy Moon ball, an accident breaks Isabel's trust in River, allowing a mysterious stranger to step in.