King Hiss and the Snake Men once ruled all of Eternia, but for centuries they have been kept prisoner in a void deep within Snake Mountain. All this changes when Skeletor joins forces with Kobra Khan to set the snake men free. In order to confront this newest peril, He-Man and the Masters must rely upon the aid of the enigmatic Zodac, who turns out to be pursuing his own deadly agenda. This episode marks the firs appearance of the soon-to-be recurring character of Webstor. ~ Hal Erickson, All Movie Guide