He-Man and the Masters of the Universe — Season 1, Episode 14: Underworld
Action & Adventure, Animation, Sci-Fi & Fantasy, Kids • 30 min • 2 seasons, 39 episodes • ★ 7.6/10
Episode synopsis
With the peace talks between the Speleans and the Caligars having broken down, King Randor, Prince Adam, and Man-At-Arms journey to Subternia to help them reach a settlement. At the same time, the Evil Warriors decide to attack Castle Grayskull form below as all of their other methods have thus far failed. It is not long before the two groups meet in the depths of Eternia...
About He-Man and the Masters of the Universe
Years ago, two leaders battled for the fantastical land of Eternia, one became the good King Randor, the other grew into the evil monster Skeletor who plans to rise once again and take Eternia. To protect the kingdom, the mystical powers of Castle Greyskull chose a hero - Randor's lazy, impulsive teenage son Adam.