When King Randor calls for an international council against the threat of Skeletor, the villain plans to attack it after the obstacle of the dragons is removed.
Teela finds herself drawn to a village called Pelleezeea, where she falls from her Sky Sled. She awakens to find that she is in the company of small creatures, Pelleezeeans, who believe her to be someone of great importance from their past.
In a desperate effort to stop the return of the Snake Men, The Masters of the Universe seek out the aid of the Evil Warriors. But Skeletor looks to capture the heroes when they arrive.
Having overthrown Snake Mountain, the Snake Men seek the power of the Elders. After allying herself with King Hssss, Evil-Lyn informs him of the power within the walls of Castle Grayskull.
Learning from Lord Dactys that King Hssss and his Snake Men are still alive, The Masters of the Universe track the Snake Men, attempting to retrieve the Serpent's Ring from the Sea of Rakash.
Adam has a dream in which he sees a warrior similar to He-Man fighting both the Snake Men and Hordak. The dream prompts him to journey to Castle Grayskull in order to seek answers to the many questions that have arisen from the dream.
Having driven the Snake Men away from the Mystic Mountains, the Masters enter a local tavern where Man-At-Arms confronts his brother, Fisto, whom he accuses of being a deserter during the Great Unrest.
As the Snake Men prepare to awaken Serpos, Evil-Lyn allies herself with Count Marzo and heads towards the Well of Darkness to free Hordak from Despondos!
Using the power of the Medallion of Serpos, King Hssss transforms Snake Mountain into the mighty snake god, Serpos! Serpos begins to cause great destruction on Eternia, viciously attacking the Royal Palace before heading to Castle Grayskull.
