Original Airdate: ?/?/1983
Man-At-Arms explains to King Randor and Prince Adam that their piece of Eternium, which has powered the Royal Palace for centuries, is almost used up. In the Sands of Time, a young boy named Chad entertains his grandfather. Chad's grandfather sees, lodged within a rock, a piece of Eternium. At Snake Mountain Mer-Man and Trap Jaw witness the Eternium moving across the Sands of Time. They attack Chad and his grandfather who deftly uses a Scatter Ray to fend them off. Chad is amazed by his grandfather's hidden fighting abilities. Mer-Man summons a Spidersaur to attack the pair. Adam, Cringer, Teela and Orko are heading to obtain the Eternium, and with Teela out of sight, Adam transforms and takes care of the Spidersaur. Trap Jaw gets an idea to eat some Eternium, and manages to obtain a piece, with Mer-Man is captured in the process. Trap Jaw now supercharged fights He-Man, until it wears off. Berbi grabs the Eternium, but accidentally swallows it. At Castle Grayskull He-Man saves Berbi via the Chamber of Life. Chad is no longer sure he wants to be a soldier.
Synopsis by Zadoc Angell