Merman attacks a seafaring hermit called Jacob with some mechanical sea monsters, but his attack fails and He-Man, Teela and the Widgets rescue Jacob. Merman thinks he could use the Widgets' Coridite to make his mechanical demons stronger, so he sets up a scheme to steal the Coridite. He-Man and his friends must stop Merman, with the help of Jacob.
Genres: Action & Adventure , Animation , Kids , Sci-Fi & Fantasy
Keywords: alien-planet , ancient-castle , ancient-sword , animation , based-on-toy , castle , fantasy-world , haunted-castle , magic , science-fiction , sorceress , sorcery , superhuman-abilities , sword-and-planet , sword-and-sorcery