The series ran for two seasons on ABC from October 4, 1980, to October 31, 1981, and was rerun on NBC in 1983. The series is set in a future (c. 3994) post-apocalyptic wasteland of Earth. Earth is reborn with a world of "savagery, super-science, and sorcery" The hero Thundarr (voiced by Robert Ridgely) is the main protagonist of the series.