Written by Bob Forward
Directed by Lou Kachivas
After freeing a baby whale from the Horde, She-Ra and Mermista realise that they unknowingly allowed a spy-device into Salineas, the home of Mermista’s peaceful people. Through this secret weapon, Hordak learns of the Power Pearl, which holds many treasures of the deep, which could be of use to the Horde. When the Pearl is stolen, the only conclusion that She-Ra and Mermista can come to is that Hordak took it – and that they must get it back.