A prisoner named Peck is attempting a daring escape from the Fright Zone, but unbeknownst to him, Hordak intentionally let him loose so that he might test his newest Horde weapon, the Grabber. As Peck arrives at the cusp of his freedom and a bright reunion with his family, Hordak's Grabber is deployed after him. Shadow Weaver uses her magic to tell Hordak where Peck is hiding, and the Grabber is able to easily snatch him up and carry him back to the Fright Zone. Hordak plans to use the Grabber to abduct the rebels one by one, bringing them to the Fright Zone as his prisoners, but Shadow Weaver sees the flaw in his plan: she is unable to see into the Whispering Woods because of its magical properties, therefore making Hordak unable to pinpoint their locations. She proposes a solution to this problem when she suggests that Hordak capture Peekablue, whose mystical vision would be able to pierce the magical veil over the Whispering Woods, and thus, Hordak dispatches his Troopers to seize her.
Meanwhile Adora is visiting Peekablue, so that she can learn what her family are currently doing on the planet of Eternia. Adora tries to convince Peekablue to join the Rebellion, so that she may use her mystic vision to keep tabs on the Horde, but she resists joining in the violence that the rebellion brings. When Peekablue uses her vision to check on the current whereabouts of the Horde, she sees her own house, and knows that they are approaching. The Horde Troopers immediately attempt to take Peekablue, while out of sight Adora transforms into She-Ra. She-Ra destroys the Horde fliers, but a Horde Trooper is able to escape with Peekablue.
At the Fright Zone, Peekablue refuses to aid Hordak, prompting Shadow Weaver to use her dark magic to bend her will and enslave her mind. Back at the rebel camp, Adora, Bow, and Glimmer are planning their rescue of Peekablue, when suddenly the Grabbers appear and abduct Glimmer. Bow tries to help, but he is also grabbed by the robot fliers. Peekablue is monitoring the situation at the Grabbers' control panel, tears streaming down her cheek as she betrays her friends, powerless to stop herself. As Hordak receives his two new prisoners at the Fright Zone, Peekablue momentarily breaks free of Shadow Weaver's thrall, defying Hordak, but Shadow Weaver is quickly able to regain control. Hordak orders Peekablue that her next target will be Adora.
Adora, preparing to infiltrate the Fright Zone to save her friends, leaves the Great Rebellion in the capable leadership of a young rebel named Keebler. She lets the Grabber abduct her and carry her away to the Fright Zone. Hordak is pleased that he now has captured all of the rebel leaders except She-Ra, but muses that even she will soon be lured into his trap when she tries to rescue the others. Bow and Glimmer reveal Peekablue's fate to Adora, and in their cell they are joined by Peck, the prisoner who so valiantly tried to escape earlier. Peck reveals the tunnel that he spent six years digging, and Adora suggests that she might be able to use her knowledge of the Fright Zone to find a way out through that tunnel. Leaving the others behind Adora enters the tunnel and transforms into She-Ra returning to free her friends.
She-Ra goes to save Peekablue, and in the midst of a battle with Hordak, Peekablue is jarred free of Shadow Weaver's thrall. Peekablue uses her position to divert a Grabber to seize Hordak, and while he is occupied, the rebels all escape. Back at the rebel camp, Keebler remains angry at the Horde for taking his father away when he was a young man, but Peck reveals that he is Keebler's father, and they share a touching reunion.
Synopsis by Michael Cravens