He-Man visits his friends Stonedar and Rokkon. Unknown to He-Man, members of the Horde are hiding at the village of the Rock People. There, Grizzlor, Leech, and Mantenna take He-Man, Stonedar, and Rokkon as prisoners. Hordak builds a Slime Pit from rocks, with the slime casting a spell onto any victim. He-Man is put into the Slime Pit, where its spell turns him evil. Hordak orders him to go to Snake Mountain and finish off Skeletor (so Hordak can capture the planet).German monolingual version in Europe:"Der Horror von Slime Pit"
Skeletor is in his Terror Claws, and He-Man manages to land a couple punches on Skeletor. He-Man breaks out of his spell with the help of the Sun Rock, an idol (or perhaps even a full-fledged deity!) of the Rock People. He-Man realizes that he shouldn't be fighting Skeletor and heads back to the Rock People. The three win a fight against Hordak, who retreats back to Etheria.
1986, Series 5.
Packaged with the Slime Pit.
The comic was also available as
Italian monolingual version in Europe:"Fuga dalla Trappola dell'Orrore"
0007-6300French monolingual version in Europe:
"La Menace du Piège Infernal"