Thundarr the Barbarian (1980)

S01E01 Secret of the Black Pearl

After rescuing an elderly man named Tyron from the rat-like Groundlings, Thundarr, Ariel, and Ookla discover that the Groundlings are hunting for the Black Pearl, an object that instills fear in the wicked wizard Gemini due to its immense power. The trio decides to transport the Black Pearl to the village of Manhat, located amidst the ruins of Manhattan. However, Ariel is captured and taken to Gemini's tower, where the evil wizard threatens Thundarr and Ookla, insisting they hand over the Black Pearl or face the dire consequences for Ariel.