Sneaking out after a training mission, Horde soldier Adora finds an uncanny sword in the Whispering Woods. Princess Glimmer wants it for the Rebellion.

On the run from a monster, Adora, Glimmer and Bow stumble into an ancient First Ones ruin, while the Shadow Weaver orders Catra to bring Adora back.

Glimmer concocts a plan to introduce Adora to Bright Moon, but it all goes wrong. Adora flees into the woods, where she meets an old woman named Razz.

Adora and her friends undertake a relief mission to the besieged kingdom of Plumeria. The Shadow Weaver still wants Catra to bring Adora back.

The squad heads for the water realm of Salineas, ruled by Princess Mermista, but first they need a ship. Catra sets sail with Force captain Scorpia.

A recruitment trip to Dryl goes awry thanks to a virus that corrupts Princess Entrapta's robots. When Adora transforms, it also infects She-Ra.