Complex sentence: Eventually the final plot where Wrath-Amon summons the evil serpent god Set was placed in the 2002 version of He-Man where King Hiss and the snakemen summon their god Serpos and He-Man fights Serpos to save Etheria.
Split into simpler sentences: Eventually the final plot where Wrath-Amon summons the evil serpent god Set was placed in the 2002 version of He-Man. In this storyline, King Hiss and the snakemen summon their god Serpos and He-Man fights Serpos to save Etheria.