The village of Elberon throws a party for Adora, Bow and Swift Wind. A village girl named Flutterina helps when the Horde springs another trap.

After a disastrous mission, Mermista is certain there's a Horde spy in Bright Moon and vows to sleuth them out with her mystery novel experience.

Adora, Bow and Swift Wind arrive on Beast Island and make a shocking discovery. Glimmer heads to the Crystal Castle to talk to Light Hope.

Adora, Micah and the princesses search for a way to fight back and to rescue Glimmer. On Horde Prime's flagship, Catra schemes.

Forced to land on a desolate planet to replenish the ship's fuel crystals, Adora meets three siblings on the run from Horde Prime.

Mermista, Scorpia, Perfuma and Sea Hawk go undercover underwater to recruit Prince Peekablue. Netossa notices that Spinnerella is acting strange.

Adora, Catra, Perfuma and Netossa reenter the Fright Zone to rescue Scorpia while Bow and Glimmer head to the library to check on Bow's dads.