ThunderCats (1985)

Episode Overview

Mumm-Ra calls upon Malcar, a long-deceased alchemist, to rise again from the grave. However, Malcar returns in a frail and aged state, just as he was at the time of his death. To revive his strength and vitality, Mumm-Ra leads him to the mystical forest of youth. Once rejuvenated, Malcar harnesses his renewed powers to launch an assault on the Thundercats. In a bold move, he alters all the Thunderillium across the planet, converting it into Thundrainium.