Season 3 opens with Mumm-Ra learning of the treasure of Thundera and the Sword of Plun-darr which destroyed Thundera. He recreates Thundera and travels there whilst the ThunderCats try to find him.
Season 3 opens with Mumm-Ra learning of the treasure of Thundera and the Sword of Plun-darr which destroyed Thundera. He recreates Thundera and travels there whilst the ThunderCats try to find him.