The day of Glimmer's coronation arrives, overshadowed by grief. Accompanied by Adora and Bow, she embarks on a quest to find the Chamber of Queens.

Glimmer sends Adora, Mermista, Bow and Huntara to retrieve Mara's ship, but the Horde beats them to it. Catra meets Double Trouble, a shapeshifter.

The squad waylays a Horde transport, only to have the tables turn. While Adora hunts for a new pulse bot, Glimmer takes advice from Shadow Weaver.

A spore storm traps the Horde trainees in the Woods and traps Adora in the Crystal Castle, where a damaged Light Hope is forced to reboot herself.

Catra orders Scorpia to find Entrapta's recordings so Hordak can perfect his experimental technology. Flutterina sows dissent in the squad.

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.

With tensions rising between Glimmer and Adora and morale at an all-time low, Sea Hawk, Bow and Swift Wind go out for some fun. Things get out of hand.

Razz confuses the past and the present and has trouble telling Mara and Adora apart. But Adora desperately needs her help.

The Princess Alliance is split on whether to use the magic at the Heart of Etheria or try to destroy it. Scorpia arrives with a request for help.

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.

Glimmer tries to convince Scorpia to reconnect with her runestone. On Beast Island, Entrapta reveals dire new details about the Heart of Etheria.

Catra and Hordak fight one another as Glimmer and Scorpia arrive in the Fright Zone. Adora sets off in a last-ditch attempt to stop Light Hope's plan.