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Mumm-Ra summons Malcar, an ancient alchemist, to return from the dead. The alchemist returns old and weak, as he was when he died. Mumm-Ra takes him to the forest of youth to restore his youth and power. Malcar regains his powers, and uses them against the Thundercats. He transforms all the Thunderillium on the planet into Thundrainium.
First Air Date : Jan 23, 1985
Last Air date : Sep 29, 1989
Episode : 130 Episode
Season : 4 Season
Runtime: 22:14 minutes
Studio: Syndication
Country: United States of America, Japan