Shadow Weaver uses the Fright Zone's monitor screen to show Hordak a place of great magical power on Etheria, causing Hordak to salivate at the prospect of stealing its power. She explains that for one day every five hundred years, a village called Brigis appears on Etheria. Shadow Weaver explains that the legend is that a good witch asked the residents of Brigis to guard over her magical box of power, and in return for their efforts, she would cast a spell which prolonged their lives and the life of their village, appearing only once per five hundred year span. The spell, she warned, would only endure as long as no one ever left the village during the day on which it appeared. In order to buy themselves time to capture the magical box of power, Hordak plans to kidnap a random villager, breaking the spell forevermore. He dispatches Mantenna and Grizzlor to abduct a villager. Grizzlor and Mantenna watch the village of Brigis appear before their very eyes, and try to abduct a little girl named Jarin who is picking flowers in the village.
However, she is able to run away, leaving the village and arriving at the edge of the Whispering Woods to get help. Bow is demonstrating his prowess with trick shots, as Jarin runs to them for help. Bow plans to keep the Horde busy for a few moments, while Adora and Spirit take Jarin to the safety of the Whispering Woods. Adora leaves her in a safe place and transforms into She-Ra. As Mantenna and Grizzlor chase Bow, She-Ra arrives to even up the odds. She cuts around the ground on which they stand, and rolls them up in the turf. Seeing their failure, Shadow Weaver goes to steal Jarin, offering to help her, but ultimately teleporting away with her.
Adora and Bow discover that Jarin has vanished, and they are puzzled by her reference to home as the village of Brigis, until Madame Razz explains the legend to them. Shadow Weaver presents Jarin to Hordak, and pleased with his success, he orders an attack on the village of Brigis, demanding that his Horde Troopers retrieve the witch's magic box. Adora and Bow arrive at Brigis, where they are met with suspicion by the villagers. Adora tells them that they are looking for Jarin, but the villagers are also desperate to get her back, so that the spell is not broken.
As the Horde attacks, Bow takes the villagers into the safety of the Whispering Woods, while Adora uses the opportunity to become She-Ra. She catapults a group of Hordesmen into a hollow log, and then tosses the log to the Fright Zone. Hordak personally challenges She-Ra, but she dodges his fire and sends him back to the Fright Zone. At Horror Hall, Shadow Weaver consults her magic to divine that Hordak's next attack on Brigis will be successful, provided that they can retain Jarin. She-Ra enters Horror Hall to rescue Jarin, easily defeating the Horde Troopers that guard her cell and destroying their weapons. She tears the door off its hinges and frees Jarin, as time grows short.
She-Ra returns to Brigis with Jarin, but undaunted, Hordak is determined to capture the magic box. As Brigis prepares to vanish She-Ra is able to block the Horde Tanks, and when Hordak destroys the dam and causes the water to race toward the village, She-Ra redirects the water back at Hordak. Brigis vanishes back into the time-stream for another five hundred years, the villagers thankful to She-Ra.
Synopsis by Michael Cravens